The 1991 Acura NSX factory service and repair manual covers the car's single 3.0L 2977cc V6 in its one Base Coupe 2-Door trim, with the OEM procedures, torque specifications, wiring diagrams and diagnostics written by the manufacturer for this vehicle. It is matched to this exact year, so the specifications and sequences are correct for your engine and trim.
Engines
- 3.0L V6 — 2977cc (182 cu in), DOHC, naturally aspirated, gas
Trims
- Base Coupe 2-Door
Known issues on the 1991 NSX. One recall is on federal record for this model year, covering the front seat belt buckle assembly: the front safety belt buckle release buttons can break, and broken pieces can fall into the buckle, so the safety belts would not provide adequate protection to an occupant in a vehicle crash. Owners have filed 4 complaints and Acura has issued 16 technical service bulletins for the year. This manual carries the factory diagnostic and repair procedures behind those systems.
From a routine service interval to a seat belt and restraint repair or a hard-to-trace wiring fault, it keeps you on the OEM procedure and the correct specification for your specific 1991 NSX.
THE FRONT SAFETY BELT BUCKLE RELEASE BUTTONS CAN BREAK. THESE RED PLASTIC RELEASE BUTTONS ARE MARKED "PRESS." IF A BUTTON BREAKS, PIECES CAN FALL INTO THE BUCKLE ASSEMBLY CAUSING THE BUCKLE TO OPERATE IMPROPERLY.
THE SAFETY BELTS WOULD NOT PROVIDE ADEQUATE PROTECTION TO AN OCCUPANT IN A VEHICLE CRASH.
OWNERS SHOULD PROMPTLY CHECK THE CONDITION AND OPERATION OF BOTH FRONT SAFETY BELT BUCKLES. CAREFULLY INSPECT THE RED RELEASE BUTTON FOR ANY BREAKS OR CRACKS. CHECK THAT BOTH BUCKLES ARE OPERATING PROPERLY BY INSERTING EACH LATCH PLATE INTO ITS BUCKLE, TUG ON THE BELT TO MAKE SURE THE LATCH IS SECURELY LOCKED, THEN PRESS THE RELEASE BUTTON. THE LATCH PLATE SHOULD POP OUT OF THE BUCKLE WHEN THE BUTTON IS PRESSED. IF EITHER RELEASE BUTTON SHOWS ANY SIGN OF BREAKAGE OR CRACKING, OR IF EITHER BUCKLE
ACURA: THERE ARE GUIDELINES FOR VARIOUS SITUATIONS AND PROCEDURES INCLUDING: TIRE PRESSURE VALVE STEM INSTALLATION, TRAILER STABILITY MALFUNCTION LIGHT IS ON, ENGINE OIL APPLICATION GUIDE, NEW SOFTWARE, NEW TRANSMISSION FLUID, NOTCHY STEERI
SPEEDOMETER SHOPS CAN TRANSFER ODOMETER MILEAGE. ACURA. SERVICENEWS. *TT
INTERMITTENT SRA DIAGNOSTIC TROUBLE CODE 1-1 TO 1-5, DRIVER'S AIRBAG INFLATOR CIRCUIT. OCTOBER TECH LINE INFORMATION. *TT
AUDIO UNIT AND NAVI ANTI-THEFT CODES AVAILABLE ON IN. ACURA SERVICENEWS. MAY 2004. *TT
SPARE TIRE INSPECTION. ACURA SERVICENEWS. *TT
HARD TO ENGAGE 1ST GEAR, GRINDS INTO REVERSE. TECH LINE SUMMARY. *TT
INFORMATION ON TIGHTENING BOLTS USING TORQUE AND ANGLE. *TT
SOME 2000 MDX MODELS AS WELL AS OTHER MODELS MAY EXHIBIT BRIEF HESITATION WHEN ACCELERATING AT HIGH ENGINE SPEED. *TT
Showing the 8 most recent of 16 technical service bulletins on file with NHTSA.
PREMATURE WEAR/BALDNESS OF TIRES, RESULTED IN LOSS OF CONTROL/ACCIDENT. *SKD
TIRES WEAR PREMATURELY. *SKD
ANTILOCK BRAKE SYSTEM MUST BE REPLACED DUE TO MODULATOR LEAKING PUMP METAL FILINGS INTO RESERVOIR.
ABS MODULATOR IS LEAKING PUMP METAL INTO THE RESERVIOR CAUSING ABS FAILURE.
DEAR NHTSA: WHILE DRIVING UNDER NORMAL ACCELERATION I NOTICED A GRINDING NOISE FROM THE TRANSMISSION. I SUBSEQUENTLY DISCOVERED THAT A TRANSMISSION PART FAILED. SEE ATTACHED PHOTO. I LEARNED BY FURTHER INVESTIGATION THAT ACURA OF AMERICA IS AWARE OF THIS MANUFACTURER DEFECT AND HAS ISSUED MULTIPLE TECHNICAL SERVICE BULLETIN IN THE UNITED STATES SEE ATTACHED. IN JAPAN HONDA ISSUED AN OFFICIAL SAFETY RECALL IS ACTIVE FOR THE SAME EXACT ISSUE. THERE ARE NO DIFFERENCES BETWEEN THE JAPANESE PAR
