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06-03-2009, 08:50 AM
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#1 |
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Banned
Join Date: Jun 2009
Location: SoCal
Posts: 7,249
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G1 DIYs
Day One. Post One. I love all of you guys you know that (I say that in the most hetero way possible)?
Here is the G1 FAQ with clickable links to threads that will answer questions for some of the most common questions, issues, and problems that arise with our G1's. First things first...the SEARCH Function. There are many things that have been discussed here many times before...check it out and do lots of research...if you cant find your answer in a SEARCH or in this FAQ...start a new thread...and heres a little TIP:  You can narrow down your search to only the G1 Section by selecting it in the "Search in Forum" box! Other GREAT Resources: legend-reference.tk Auto Trans Info G1 Workshop Manual Special thanks again to Pacallen and wksebati for hosting the manual for us!! They make this valuable tool available to all of us! Download this version that allows easier navigation of the manual: G1 Legend Coupe Manual PDF UPDATED Helms Manual Hosted on the Legend Wiki Mirror Sites (be sure to "Right Click, Save As"): PDF Version 1 PDF Version 2 PDF Version 3 The PDF Version takes a few minutes to completely load, but once it does, SAVE IT TO YOUR HARD DRIVE by clicking the "SAVE A COPY" button in your viewer. You can now run it directly from your computer by simply opening it in a PDF Reader Program. G1 General Regular Service Maintenance Schedule ECU Codes and What they Mean TCU Codes and what they Mean Lifter Ticking 101-Explanation and Solutions Auto Transmission shifting problem? Want better Fuel Economy? Here's the thread! Main Relay Symptoms Main Relay Repair Bypass Control Solenoid Replacement A/C Compressor Replacement Info A/C Compressor Rebuild Console and Stereo Removal Procedure Auto Climate Control Self Diagnosis G1 Performance Mod Secrets and G1 Performance Tips Swapping from an AUTO to Manual Tranny--General Info DIY Cold Air Intake OBX Headers Vs. Stock Headers Comparo Short Shifter Fut's G1 Specific Custom Sway Bars B&M Fuel Pressure Gauge B&M Fuel Pressure Regulator MSD -6A Ignition Install DIY SDS Engine Management Install on C27a1 DIY Larger OEM Honda Sway Bar Install DIY WANT TO BUY A TURBO SETUP?? CLICK HERE... G1 Interior and Exterior Mods 86-88 Sedan Clear Turn Signals DIY Swap 89-90 Sedan 1-Piece Headlights onto 86-88 Sedan Iggee Seat Covers Taurus Cupholders Mod Prelude Steering wheel in a G1 Reverse Glow Gauges G1 Speaker Size Chart Trunk Light Mod G1 Dimmer Mod Trunk light not working? Possible Fix Interior Cathode Lights Fan Control Repair Relocating the Battery to the Trunk Misc Interior Mods Last edited by sam o nela; 07-11-2023 at 10:44 PM. |
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06-03-2009, 08:51 AM
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#3 |
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Banned
Join Date: Jun 2009
Location: SoCal
Posts: 7,249
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Taken from the Acura Legend Wiki:
Honda introduced the model in 1985 in Japan to be their premier luxury model and in 1986 North America as the range-topping model in its then-new Acura lineup. The first generation Legend is notable for many technical innovations. The coupe was the first to be engineered using CAD (computer aided design). Sedan models came to market first, powered by a 151 hp (113 kW) 2.5 L C25A V6 with coupes appearing for 1987 powered by a new 161 hp (120 kW) 2.7 L C27A engine. Sedans received the new engine for 1988. Production of the first generation models ended in 1990 as a second generation version became available.    The Legend was indeed an impressive car receiving accolades from all sides, winning Car and Driver's Ten Best three years in a row and Motor Trend's "Import Car of the Year" for 1987. Legends were regarded for their impeccable fit and finish, incredible reliability, and good performance. Manual-equipped models could sprint to 60 mph (97 km/h) in under 8 seconds and reach a top speed of 135 mph (217 km/h). Sedan models had a coefficient of drag of .32, while coupes were only .30.   Technical highlights were numerous, featuring a 24-valve V6 engine, variable length intake manifold, double-wishbone suspension, 4-wheel disc brakes, air bag and an information system that could monitor maintenance intervals, fluid levels, and fuel economy. In 1989, the sedan received some minor tweaks with new one-piece front headlamps, a new front bumper, a revised trunk lid, new tail lights, and new alloy wheels. Inside, a revised dash and seat cloth patterns is also noticeable. The high end LS now featured a trip computer in the center stack. In 1990, the Legend LS coupe was revamped with a woodgrain interior, clear/red taillights, and a new body-colored grille. The sedans also received the woodgrain interior for the LS model. Sedan OEM Wheels 1986-1988  Sedan OEM Wheels 1989-1990  Coupe OEM Wheels 1987-1990  Trim Differences (Base vs L vs LS)   
Last edited by sam o nela; 08-17-2010 at 03:59 PM. |
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06-03-2009, 08:52 AM
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#4 |
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Banned
Join Date: Jun 2009
Location: SoCal
Posts: 7,249
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Vacuum Diagram
 Radio Wiring Diagram  Speaker Size Chart 
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06-03-2009, 08:53 AM
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#5 |
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Banned
Join Date: Jun 2009
Location: SoCal
Posts: 7,249
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Underhood Fuse box diagram
Last edited by sam o nela; 06-06-2009 at 02:25 PM. |
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06-03-2009, 08:55 AM
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#6 | |
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Banned
Join Date: Jun 2009
Location: SoCal
Posts: 7,249
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Paint Codes List
Exterior codes; on driver's door jamb. Interior type code; on passenger's door jamb. Quote:
Last edited by sam o nela; 10-06-2009 at 09:27 PM. |
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06-03-2009, 07:05 PM
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#7 |
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Project 130R
Join Date: Jun 2009
Location: Grand Rapids, MI
Posts: 1,550
Real Name: Erik
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I'll add mine from 1990 once again (soon to be repainted):
YR-92M = Tuscany Taupe Metallic (aka mud brown) 
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Project 130R Channel |
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06-03-2009, 08:02 PM
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#8 |
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Project 130R
Join Date: Jun 2009
Location: Grand Rapids, MI
Posts: 1,550
Real Name: Erik
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Below added from a wiki-style page I created. I'll see if I can't be quick enough on the edit to add clickable pic links to further illustrate certain items. If you see any errors, please feel free to correct them!
Honda/Acura Legend (First Generation) Production Versions KA1: Japan-spec sedan (RHD), 1986-1988 KA2: Japan-spec sedan (RHD), 1986-1987 KA2: European/Australian-spec sedan (RHD/LHD UK), 1986-1987 KA2: American-spec sedan (LHD), 1986-1987 KA3: Japan-spec coupe (RHD), 1987-1990 KA3: European/Australian-spec coupe (RHD/LHD UK), 1987-1990 KA3: American-spec coupe (LHD), 1987-1990 KA4: Japan-spec sedan (RHD), 1988 KA4: European/Australian-spec sedan (RHD/LHD UK), 1988 KA4: American-spec sedan (LHD), 1988-1990 KA5: Japan-spec sedan (RHD), 1989-1990 KA6: Japan-spec sedan (RHD), 1989-1990 Production/Design Notes Although the Honda Legend used the same one-piece headlight design (with integrated foglights)for all models 1985-1990, the USDM KA2 sedan featured a split headlight/foglight design (and different grille) for 1986-1987, switching over to the one-piece headlights in 1988. In addition, while the USDM sedan interior was redesigned for 1989, all other market Legends kept the original interior, which can be clearly seen in the door panels and dashboard. The coupe design seems to remain the same for all markets and model years. History What makes the Legend unique? The Legend was one of two models that launched under the Acura brand in the US (the other being the Integra). It was the first Honda passenger vehicle to use a V6 engine, itself an all-aluminum 24-valve with a variable-length intake manifold developed from Honda’s F1 experience. The coupe was the first automobile to be engineered using CAD (computer aided design). When was the Legend introduced? The Honda Legend was introduced in November 1985 (in Japan) as a 1986 model. Production at the plant in Saitama, Japan ended September 1990 as the new (second generation) model was introduced. Where was the Legend sold or imported? The Legend was sold as a Honda Legend in Japan, Mexico, Europe, Australia, and parts of China, and as an Acura Legend in the USA and Canada. Additionally, it was imported into Russia, New Zealand, and several other countries. Production Data Honda Legend: 1986-1987 V6 Xi 2500 (KA2) - C25A - Power driver’s seat, adjustable rear seats, power folding mirrors, remote locking/keyless entry, power tilt/slide sunroof 1986-1990 V6 Zi (KA1*) - C20A 1986-1988 V6 Gi (KA1) - C20A 1987-1990 2Dr Exclusive (KA3) - C27A - Auto only, leather seats, wood trim, power front seats, power tilt/slide sunroof 1988-1990 V6 Xi Exclusive (KA4**) - C27A - Auto only, wood trim, leather seats, remote locking/keyless entry, power tilt/slide sunroof 1988-1990 V6 Xi 2700 (KA4**) - C27A - Auto only 1988-1990 V6 Gi Exclusive (KA1*) - C20A - Auto only, wood trim, leather seats 1988-1990 V6 Mi (KA1*) - C20A 1989-1990 V6 Ti Exclusive (KA5) - C20AT - Auto only, power folding body-colored mirrors, foot-operated parking brake, leather seats, extensive wood trim, keyless entry, power seats, power tilt/slide sunroof 1989-1990 V6 Ti (KA5) - C20AT *In 1989 the KA1 platform was redesigned and renamed KA5 **In 1989 the KA4 platform was redesigned and renamed KA6 Honda Japan MSRPs (in USD): 1986 V6 Xi 2500 - $26,800 1989 V6 Mi - $17,900 1989 V6 Ti - $21,700 1989 V6 Gi Exclusive - $21,900 1989 V6 Xi Exclusive - $25,100 1989 V6 Ti Exclusive - $25,100 Acura Legend: 1986-1988 Sedan (KA2) - C25A 1987 Sedan L (KA2) - C25A - Leather seats, leather steering wheel, 4-way power driver’s seat, dual illuminated vanity mirrors, heated side mirrors 1987 Coupe/Coupe L (KA3) - C27A 1988 Sedan (KA4) C27A - Power sliding sunroof 1988 Sedan L (KA4) - C27A - Security system, anti-lock brakes 1988 Sedan LS (KA4) - C27A - Driver’s side airbag, Bose audio system, 10-way memory power driver’s seat, 4-way power passenger seat, Driver’s Information Center, automatic climate control 1988 Coupe (KA3) - C27A - Power sliding sunroof 1988 Coupe L (KA3) - C27A - Driver’s Information Center, security system, automatic climate control, anti-lock brakes 1988 Coupe LS (KA3) - C27A - Driver’s side airbag, Bose audio system, 4-way power memory seats 1989-1990 Sedan (KA4) - C27A - Driver’s side airbag 1989-1990 Coupe (KA4) - C27A - Driver’s side airbag 1989 Coupe L (KA4) - C27A - 6-way memory power driver’s seat 1989 Coupe LS (KA3) - C27A 1990 Sedan (KA4) - C27A - Body-colored power heated mirrors 1990 Coupe (KA3) - C27A - Body-colored power heated mirrors 1990 Sedan LS (KA4) - C27A - Wood center console, fog lights, CD player/changer 1990 Coupe LS (KA4) - C27A - Body-colored rear spoiler, wood center console, fog lights, gold alloys, front end cover, CD player/changer Drivetrain Engines (JDM/EDM-spec) C20A - 2.0L SOHC V6 Horsepower: 143 @ 6300 rpm Torque: 127 @ 5000 rpm Compression Ratio: 9.2:1 Bore/Stroke: 82x63mm C20AT - Turbocharged 2.0L SOHC V6 Horsepower: 187 @ 6000 rpm Torque: 177 @ 3500 rpm Compression Ratio: 9.0:1 Bore/Stroke: 82x63mm C25A - 2.5L SOHC V6 Horsepower: 163 @ 6000 rpm Torque: 155 @ 4500 rpm Compression Ratio: 9.0:1 Bore/Stroke: 84x75mm C27A - 2.7L SOHC V6 Horsepower: 177 @ 6000 rpm Torque: 166 @ 4500 rpm Compression Ratio: 9.0:1 Bore/Stroke: 87x75mm * Footnote: Both C20A engines (NA and Turbo) use the same cams, but different crankshafts. Engines (US-spec) C25A - 2.5L SOHC V6 Horsepower: 151 @ 5800 rpm Torque: 154 @ 4500 rpm Compression Ratio: 9.0:1 C27A - 2.7L SOHC V6 Horsepower: 161 @ 5900 rpm Torque: 162 @ 4500 rpm Compression Ratio: 9.0:1 What kind of gearboxes were available in the Legend? There were several different gearboxes fitted to the Legend. The 5-speed manual had the following ratios: C20A - 3.250/1.857/1.346/1.033/0.794/R 3.000/Final 4.200 JDM/EDM C25A - 2.923/1.789/1.222/0.909/0.702/R 3.000/Final 4.200 US C25A - 2.923/1.789/1.259/0.968/0.750/R 3.000/Final 4.200 US C27A - 2.923/1.789/1.222/0.909/0.702/R 3.000/Final 4.200 The 4-speed automatic had the following ratios: 1986-1987 C20A - 2.647/1.555/0.971/0.682/R 1.904/Final 4.400 1988-1990 C20A - 2.705/1.629/1.058/0.750/R 1.904/Final 4.533 C20AT - 2.764/1.500/0.972/0.707/R 1.904/Final 4.714 JDM C25A - 2.647/1.464*/0.971/0.682/R 1.904/Final 4.200 JDM C27A - 2.647/1.448/1.028/0.707/R 1.904/Final 4.266 US C27A - 2.647/1.555/1.028/0.777**/R 1.904/Final 4.266 *US C25A had a 1.555 gear **Coupes had a 0.707 gear Chassis How is the Legend suspension set up? The initial suspension system of the Legend used MacPherson struts with unequal-length control arms in front and a semi-trailing arm design in the rear. Antisway bars measured 26.5mm front and 12.5mm rear. In 1987, the coupe debuted with MacPherson struts front and rear and 27.4mm front/14.7mm rear antisway bars, and in 1989 the sedan followed suit. Steering is rack-and-pinion, with speed-sensitive power assist and an overall ratio of 15.9:1 on the coupes and 17.6:1 on the sedans. What kind of brakes does the Legend have? Every Legend has four-wheel disc brakes. The vented front rotors on 1986-1987 sedans measure 10.3 inches (262mm) in diameter and the solid rear rotors measure 10.16 inches (258mm). Sedans from 1988-1990 and all coupes upgraded to 11-inch (280mm) rotors in the front. ABS was available on L and LS models. What are the factory wheel and tire sizes for the Legend? All models are fitted with 205/60R15 tires, with several different wheel options. The 1986-1988 sedans were equipped with 6.5x14-inch 16-spoke alloys, all coupes used a 20–spoke turbine design, and 1989-1990 sedans came with 20-spoke alloys. Optional on the 1990 LS coupes were special gold “throwing star” alloy wheels. A JDM option was a white-painted version of the 1986-88 16-spoke wheels.
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Project 130R Channel Last edited by NuclearSymphony; 06-17-2009 at 08:03 PM. Reason: Adding clickable links |
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06-06-2009, 02:23 PM
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#9 |
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Banned
Join Date: Jun 2009
Location: SoCal
Posts: 7,249
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As I read in one post the G1 forum needed a FAQ. So as I sit here bored in directed study almost done wit my sophomore year in high school I decide to write this FAQ. I have no idea where to start as there are many questions. Here you go. Most of this is from daddymack117 , I just did a lot of copy/past from all around the forum, as I have some time in school. So only som of this is written BY me.
Gas Mileage- Some people worry about there mileage. You must understand you have 6 cylinders under that hood, not four. You should be getting at least 18-23 city and 24-27 highway. Now ways of getting better. Adding gas treatment that cleans valves, injectors, or improve fuel quality do help. But upgrading to say a CAI (cold air intake)or even a high flow filter works great along with an exhaust system(2 ½ seems to work great for our legends).Adding CAI and exhaust increased my mileage to 34 on highway.Other than that regular unleaded gas gives much better mileage compared to the low grade with 10% ethanol in it. Main Relay- Location for this is under the driver side dash, and is a little black box-OEM part number for main relay- MITSUBA RZ-0063. It has an 8 pin socket with the #6 pin missing. (so the 7 pin on this link http://www.theautochannel.com/autopa...egraitems.html) www.acuraparts247.com some may prefer to get a main relay from a wrecker or salvage yard. Probably cost about $5.00. Symptoms for Bad Main Relay- 1. Car wont start off its own but if jump started, will fire right away. 2. Not clicking when turning key. 3. If you have Ground but no Power. *note-A main relay usually only fails when the weather is really hot. You might have a hard start every now and then, but not enough to really cause you any concern, but when an igniter or a coil fails, the car won't start at all until it cools down and that will be a major concern. O2 sensors- O2 sensors calculate how much oxygen is in your engine. They can cause your engine to burn rich, lien, poor, etc. These also cause bad gas mileage. Replacement: Type of Car Mileage Replacement Interval Recommended Unheated oxygen sensors on 1976 to early 1990s vehicles-Every 30,000 - 50,000 miles Heated (1st generation) oxygen sensors on mid-1980s to mid-1990s vehicles Every 60,000 miles Heated (2nd generation) oxygen sensors on mid-1990s and newer vehicles Every 100,000 miles Types of O2 sensors- Unheated Thimble: This was the first oxygen sensor design and Bosch has been producing them since 1976. These sensors either have one wire or two (for purposes of grounding), since they do not require power for a heater element. They use a zirconia ceramic element to generate a voltage in a rich (insufficient oxygen) gas environment. They can take several minutes to reach operating temperatures of 625 degrees Fahrenheit after a cold start, however this varies with application as the location of the sensor determines the rate at which it heats. Heated Thimble: These sensors were introduced by Bosch in 1982 and function in the same manner as the unheated thimble, however inside the thimble is a special heating element that brings the sensor up to operating temperature in about 30-60 seconds. The additional wires to power the heater- typically a total of 3-4 wires (dependent on grounding scenario) can identify these sensors. Planar: This sensor was introduced by Bosch in 1997 and also uses the zirconia ceramic sensing technology, but placed in a more compact thin flat shape (hence the name) instead of a thimble or conical shape. This allows the sensor to be smaller and lighter. They also require less electrical power as the heater is integrated into the smaller sensing element. By model year 2004, planar oxygen sensors are expected to account for over 30% of all new oxygen sensor applications and by 2007 for over 50% of new oxygen sensors. These sensors also have only four wires. Wideband: This is the newest design of oxygen sensor and it offers the increased accuracy needed to meet the latest emissions requirements. Unlike all the other types of oxygen sensors, the wide-band sensor can actually measure the air/fuel ratio from 11:1 (excess fuel condition) all the way to straight air (no fuel)! (The ideal air/fuel ratio is 14.7/1.) This improved measurement allows the engine control system to measure the actual air/fuel ratio and eliminates the switching between lean and rich associated with a traditional type of oxygen sensor. These sensors use a planar zirconia ceramic element, so that they heat up much faster than other types of sensors- reducing cold start emissions. These sensors can be identified with having five or more wires. In addition, these sensors are used with the newly developed gasoline direct injection engines. Direct injection engines can use stratified charges, which produce a very lean mixture in the combustion chamber, and these sensors must be used because of their ability to measure from very lean to very rich accurately. Titania: These sensors use a different type of oxygen sensing technology and instead of generating a voltage signal that changes with the air/fuel ratio, the sensor’s resistance changes. These sensors are used on less than 0.5% of all oxygen sensor equipped vehicles. Most O2 sensors run for about $40.00. Sadly on our legend we need 2. for both manifolds. Links to some sites www.boschusa.com , www.ngk.com , www.ebay.com Maintinence- Every 250 miles or weekly Check engine oil Check engine coolant level Check windshield washer fluid Check brake fluid level Check tires and tire pressures Every 3,000 miles or 3 months Above listed items plus: Check power steering fluid level Check automatic and transmission/transaxle fluid level Change engine oil and filter Every 7,500 miles or 6 months All items listed above and: Inspect/replace wiper blades Check/Service Battery Check/Adjust (if necessary) engine drivebelts Inspect/Replace (if necessary) all underhood hoses Check cooling system Rotate Tires Check front disc brake pads Every 15,000 miles or 12 months All items listed above and: Inspect the brake system Check clutch pedal height and freeplay Inspect the seatbelts Replace the a/c air filter Adjust valve clearances Replace the air filter Inspect the fuel system Check m/t lubricant Check differential lubricant level Inspect suspension and steering components and driveaxle boots Inspect exhaust system Every 30,000 miles or 24 months All above listed items plus: Replace the spark plugs (conventional, non-platinum) Check and replace, if necessary, the PCV Valve Replace the fuel filter Service the cooling system (drain, flush, fill) Replace the brake fluid Change automatic transmission/transaxle fluid Change manual transmission/transaxle lubricant Change differential lubricant Check EGR system ( Exhaust Gas Recirculation) Check and adjust engine idle speed Check and adjust engine ignition timing Replace ABS high pressure hose Reset Maintenance Required Indicator Every 60,000 miles or 24 months All items listed above plus Replace the spark plugs (PLATINUM TIPPED SPARK PLUGS) Every 90,000 miles or 72 months Replace timing belt Replace water pump PCV Valve, Cover, Filter Chassis Codes KA2 - Refers to 86-87 Sedan KA3 - Refers to 87-90 Coupe KA4 - Refers to 88-90 Sedan KA7 – Refers to 91-95 Sedan KA8 – Refers to 91-95 Coupe KA9 - Refers to 96-04 RL KB1 - Refers to 05-?? RL 1st Generation: 86-90 Sedans/Coupes 2nd Generation: 91-95 Sedans/Coupes (96 JDM Coupe) 3rd Generation: 96-04 Sedans only (Acura RL) 4th Generation: 05-?? Sedans only (Acura RL) USDM: United States Domestic Market JDM: Japanese Domestic Market EDM: European Domestic Market OEM: Original Equipment Manufacturer (basically used to refer to factory parts) AEM: Aftermarket Equipment Manufacturer (literally). They make aftermarket stuff. Nothing specifically for the Legend though. FWD Front Wheel Drive RWD Rear Wheel Drive AWD All Wheel Drive . 1st Generation: 86-90 Sedans/Coupes 2nd Generation: 91-95 Sedans/Coupes (96 JDM Coupe) 3rd Generation: 96-04 Sedans only (Acura RL) 4th Generation: 05-?? Sedans only (Acura RL) USDM: United States Domestic Market JDM: Japanese Domestic Market EDM: European Domestic Market OEM: Original Equipment Manufacturer (basically used to refer to factory parts) AEM: Aftermarket Equipment Manufacturer (literally). They make aftermarket stuff. Nothing specifically for the Legend though. FWD Front Wheel Drive RWD Rear Wheel Drive AWD All Wheel Drive Blown Head Gasket- Commonly known as BHG(Overheating 101) This is mainly an overheat and causes the Head Gasket to blow out causing oil in coolant/coolant in oil. There will usually be white smoke coming out of the exhaust on idle or acceleration. VSS- this is your vehicle speed sensor. If you speedometer is going completely whacky or reads 0 mph , this us your vss. From your dealer it should run you around $150-$300 depending on where you go. Most likely cheaper from salvage yard, wrecker, etc. |
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06-06-2009, 02:24 PM
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#10 |
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Banned
Join Date: Jun 2009
Location: SoCal
Posts: 7,249
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Vehicle Identification (VIN)
The following is a breakdown of what your 17-digit Acura Legend Vehicle Idenfication Number (VIN) denotes: Digit 1-3 - Manufacturer JH4 = Honda Motor Co. LTD Digit 4-6 - Body Type KA1: Japan-spec sedan (RHD), 1986-1988 KA2: Japan-spec sedan (RHD), 1986-1987 KA2: European/Australian-spec sedan (RHD/LHD UK), 1986-1987 KA2: American-spec sedan (LHD), 1986-1987 KA3: Japan-spec coupe (RHD), 1987-1990 KA3: European/Australian-spec coupe (RHD/LHD UK), 1987-1990 KA3: American-spec coupe (LHD), 1987-1990 KA4: Japan-spec sedan (RHD), 1988 KA4: European/Australian-spec sedan (RHD/LHD UK), 1988 KA4: American-spec sedan (LHD), 1988-1990 KA5: Japan-spec sedan (RHD), 1989-1990 KA6: Japan-spec sedan (RHD), 1989-1990 KA7: 91-95 4 Door Sedan KA8: 91-95 2 Door Coupe KA9: 96-04 RL Digit 7 - Body Style/Transmission Type 1 = coupe, manual 2 = coupe, automatic 5 = sedan, manual 6 = sedan, automatic Digit 8 - Option/Trim Package 3 = 86-90 Standard (No Sunroof) 4 = 86-90 Standard (Sunroof) 5 = 86-90 Leather Interior 6 = 86-95 L Trim 7 = 86-95 LS Trim 8 = 93-95 GS Trim 9 = 93-95 SE Trim Digit 9 Check digit Digit 10 - Production Year G = 1986 H = 1987 J = 1988 K = 1989 L = 1990 M = 1991 N = 1992 P = 1993 R = 1994 S = 1995 Digit 11 - Assembly Plant Location C = Saitama, Japan Digit 12-17 Individual vehicle serial number ECU Codes- Getting that little Check Engine lights on your dash may seem a little discomforting. In reality it is really a miracle of engineering and computer technology. Instead of randomly pocking in vast amounts of wires, sensors, and mechanisms in such complex car as a Legend, this little light tells you that your computer knows exactly what is wrong with the car (most of the time). That means the exact sensor or gate has been pin-pointed as being either partially disconnected or simply out of acceptable range. Location of ECU on 1986-1990 Legends The control unit is located under the passenger seat on sedans and under the passenger foot well carpet on the coupes. The engine CPU is the form of an aluminum box with a little plexiglass window. All you have to observe is a little red LED. Extracting Codes With the car either running or the key in the ON position, perform the necessary steps above and observe the blinking of the light. The light will blink displaying all the codes in sequence and then repeating them. Reading Codes The code numbers are read by counting the number of blinks between longer pauses. On 1986-1990 Legends, the code number is indicacted by a series of rapid LED blinks between longer pauses. The position of codes in a sequence can be helpful in doing diagnostics. A display showing 1-1-1-pause-9-9-9 indicates two problems occurring at different times. A sequence showing 1-9-1-9-1-9 indicates two problems occurring at the same time. Resetting ECU Sometimes it may be useful to reset the ECU memory. Although that maybe done by removing the battery for around 20 minutes or so, this will also kill your clock and radio presets. A more elegant way is to: on 86-90 Legends remove the alternator fuse for 20 seconds. on 91-95 Legends remove the ACG fuse in the interior fuse panel for 20 seconds. (note that this will also clear the seat memory) Aftermarket ECU-Chasing after an aftermarket ecu for the g1 is almost impossible. You either need a piggyback systerm from AEM or if you can get ahold of the BAYOU company then you might be in luck. -- ------------------------------------------------------------------------------ Below are trouble codes for 86-95 Acura/Honda Legends: 1986-1990 Legend (G1) Code # Explanation 1 Front Oxygen Sensor 2 Rear Oxygen Sensor 3 Manifold Absolute Pressure Sensor 5 Manifold Absolute Pressure Sensor 4 Crank Angle Sensor 6 Coolant Temperature Sensor 7 Throttle Angle Sensor 8 Top-Dead-Center Position Sensor 9 Number 1 Cylinder Piston Position 10 Intake Temperature Sensor 12 E.G.R. System 13 Atmospheric Pressure Sensor 14 Electronic Idle Control Module 15 Ignition Output Signal 17 Vehicle Speed Sensor 18 Ignition Timing Adjustment Wheel offset and bolt patter-Wheel offset is 50mm. Bolt pattern is 4x114.3 mm to be exact.most people with aftermarket rims have an offset of +41. Engine Swaps- In theory, if you have the time (and money), just about any engine swap is possible, just most will require extensive bodywork, engine bay work, pain, and suffering, so again unless you have money burning a hole in your pocket, most swaps with other Honda/Acura engines should not be attempted. On the other hand, there are a few exceptions to what can be swapped and what can't: USDM C27A1---->JDM C27A1(vice versa) USDM C27A1---->USDM C27A1 Trim Levels-The G1 Legend was offered in three trim levels. The STD (also known as "standard" or "base") was the entry-level car. Despite that status, it came standard with full power accessories, sunroof, AC, cruise control, tilt steering column, and cassette stereo with equalizer. The L model adds anti-lock brakes (ALB), heated exterior mirrors, a power driver's seat, leather, and leather-wrapped steering wheel,automatic climate control and also a trip computer. The top of the line LS model adds a power passenger's seat, trip computer, automatic climate control,air bags and a Bose stereo system. Lifter valves-Lots of people wonder why there car "ticks" when it runs in the morning. Oil is needed to run through the lifter and the oil is usually cold in the morning so it has very high viscosity causing ticking, once the oil is heated up it will run through them causing the ticking to go away.To alleviate the noise, pour a half quart of Honda ATF through the crankcase and run engein for about 15 min. Then change oil and filter.A Product such as Engine Restore or Marvel Mystery Oil can be ran through after change. specs on road-A sedan with the 2.5 will hit 60 in 8.1 seconds with the five-speed manual. The quarter mile time is 16.41 at 85.6 mph. A coupe will do the quarter mile in 16.40 @ 87.5 mph, and has a 0-60 time of 8.12 seconds. This is also with the manual transmission. Automatic transmission cars are about a half a second slower to sixty. (NOTE: those stats are from the Motor Trend articles below. Results will vary based on temperature, road surface, and production variances, among other things.) Tranny- The transmission is virtually what makes the car move.No tranny=no movement. symptoms of bad automatic tranny, on startup the engine will rev over redline and hit rev limiter. It may be fixed by the 4x flush(flushing tranny 4 times).Other signs of tranny problems would be shifting troubles. To fix this, you may simply clean out the shift solenoids. http://www.geocities.com/jeffcody420/cai.htm <----thanks to Full Stealth. Now the manual tranny is pretty simple. Gearbox,master cylinder,slave cylinder,clutch,cable,flywheel,etc. not many way to fix these if broken. Only thing to really do is flush it and hope for the best. Feel free to add/stomp/tell me whats missing(i know im missing stuff but this took a while LOL) Acura Legend fact sheet.(stolen from G2 section) ACURA FACT SHEET Integra Legend CL RL TL NSX Vigor SLX MDX (Technical Service Bulletins are listed in parentheses below.) Brakes: Parking brake does not fully release, 1993-94 Vigor (94-001); ABS Problem Code 1 & leaking solenoid, 1987-90 Legend (89-022), 1990-91 Integra (91-038) & 1991-92 NSX (92-014); Brake squeal, 1986-88 Legend (87-028) & 1986-87 Integra (87-011); ABS pump runs often, 1987-89 Legend (89-029); ABS reservoir overflows, 1987-89 Legend (89-016);. Electrical/Instruments: Speed sensor failure, 1991-94 Legend (94-018); Unlocking door sets off security alarm, 1991-93 NSX (93-007); Glove box light stays on, 1991-92 Legend (92-026); ABS problem code 1-8, 1991-92 Legend (91-031 & 92-023); Driver's power seat memory loses position, 1989-90 Legend (92-015); Low oil pressure flashes, 1986-90 Legend (90-013); Premature battery failure, 1986-89 Integra (91-003); Fuel temperature gauges erratic, 1988-90 Legend (90-012); Low charge rate, 1986-88 Legend (89-018); Information center displays: Distance to empty -- N/A, 1988-89 Legend (89-010); Inaccurate readout from information center, 1987-88 Legend (87-021); Ignition key/sunroof warning beeper stays on, 1986-87 Legend (86-017). Engine/Driveability: Knock after cold start at 12-1500 rpms, 1991-93 Legend (93-006); Exhaust system rattle, 1986-91 Integra (91-051); Camshaft oil seal leak, 1990-91 Integra (91-005); Snapping valve noise, 1990-91 Integra (91-008); No start - Igniter failure, 1988-89 Integra (93-003); Excessive cranking to start, 1986-89 Integra (89-032). Suspension/Steering: Vehicle speed sensor failure, 1991-94 Legend (94-018); Steering wheel shimmy, All Acura models (94-010); Car drifts to side, 1991 Legend (91-047 & 1992 vigor (92-024); P/S pump "swooshing" noise, 1991 Legend (91-034); Off center steering wheel adj. All to 1990 (90-007); Steering wheel vibrates during pre-delivery inspection test drive, All Acura models to 1990 (90-006); Front steering knuckle clunk, 1986-87 Legend (87-033); Front suspension noise, 1986-88 Legend (87-010). Transmission: Clicking noise while turning, 1986-93 Integra/1986-95 Legend (92-009); Shudder during up/downshifts, 1986-87 Legend (88-001); No upshift past 2nd gear in A/T, All Legend to 1988 (88-008); A/T final drive noise, 1986-87 Legend (88-008); Upshift flare from 2nd to 3rd gear, 1988-89 Integra (89-031); Other: Tire noise, 1986-88 Legend (89-007); Buzzing noise from emissions control box (A/T), 1991-92 Legend (92-021). Last edited by sam o nela; 01-08-2010 at 09:44 AM. |
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