1990 Mazda RX-7 Service and Repair Manual

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Factory-Grade Data

1990 Mazda RX-7 service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical diagnostics with wiring diagrams
  • Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more

Trims covered

  • GTUs Coupe 2-Door
  • GXL 2+2 Coupe 2-Door
  • GXL Coupe 2-Door
  • Convertible Convertible 2-Door
  • Turbo Coupe 2-Door
  • GTU Coupe 2-Door

Engines covered

  • 1.3L 1308CC R2 GAS Naturally Aspirated
  • 1.3L 1308CC R2 GAS Turbocharged

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams

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Vehicle Safety Data

1990 Mazda RX-7 Recalls & Complaints

NHTSA #90E04300229/10/1990Component: AIR BAGS:FRONTAL

THREADED INFLATOR COMPONENTS MAY HAVE BEEN DAMAGED DURING ASSEMBLY WHICH MAY ALLOW COMPONENTS TO SEPARATE WHEN INFLATOR RECEIVES A SIGNAL TO DEPLOY THE AIR BAG.

Consequence

INFLATOR COMPONENT SEPARATION ALLOWS HOT COMBUSTION GASES TO ESCAPE INTO THE PASSENGER COMPARTMENT W

Remedy

REPLACE AIR BAG MODULES CONTAINING POTENTIALLY DEFECTIVE INFLATORS.

NHTSA #96V17300016/09/1996Component: SEAT BELTS:FRONT:WEBBING

THE RAIL OF THE AUTOMATIC SHOULDER BELT CAN WEAR SUFFICIENTLY SUCH THAT THE CABLE WHICH RETRACTS THE BUCKLE ASSEMBLY WILL BECOME JAMMED IN THE RAIL RENDERING THE SHOULDER BELT INOPERATIVE.

Consequence

IN THE EVENT OF A VEHICLE COLLISION, THE OCCUPANT WOULD NOT BE ADEQUATELY RESTRAINED INCREASING THE

Remedy

DEALERS WILL REPLACE INOPERATIVE SHOULDER BELTS. MAZDA HAS EXTENDED THE WARRANTY COVERAGE ON THE DR

TSB #10213425

Speedometer replacement procedure

TSB #603907

EXPERIENCING OIL LEAK AT REAR STATIONARY GEAR O-RING / ON - CAR REPLACEMENT PROCEDURE. *YC

TSB #603882

SUBJECT ON PASSIVE SEAT BELT RETRACTOR SWITCH. *YC

TSB #54319

PRE-PAINTING PREPARATIONS FOR FRONT AND REAR BUMPERS. *YC

TSB #52492

WIPER MOTOR INOPERATIVE - CIRCUIT BREAKER ACTIVATION. *TW

TSB #52497

USE OF A/C TRACER DYE. *TW

TSB #52503

MAINTENANCE FREE BATTERY - DIAGNOSTIC AND CHARGING PROCEDURE. *TW

TSB #52520

PARTS REPLACEMENT AFTER AIRBAG DEPLOYMENT. *TW

Showing the 8 most recent of 9 technical service bulletins on file with NHTSA.

20051003Component: FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAILFire reported

UNDER NORMAL DRIVING CONDITIONS, THE PULSATION DAMENER ON THE PRIMARY FUEL RAIL FAILED, SPRAYING FUEL OVER THE ENTIRE ENGINE BAY, WHICH RESULTED IN A FIRE OF THE COMPARTMENT, WHICH WAS QUICKLY EXTINGU

20051003Component: EQUIPMENTFire reported

UNDER NORMAL DRIVING CONDITIONS, THE PULSATION DAMENER ON THE PRIMARY FUEL RAIL FAILED, SPRAYING FUEL OVER THE ENTIRE ENGINE BAY, WHICH RESULTED IN A FIRE OF THE COMPARTMENT, WHICH WAS QUICKLY EXTINGU

19970804Component: ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERSFire reported

VEHICLE'S HEADLIGHT LIGHT SWITCH CIRCUIT BOARD MODULE OVERHEATS AND STARTS FIRE.THE LIGHTS TURN AND OFF INTERMITENTLY WITH NO WARNING.THE HEADLIGHT SWITCH IS DEFECTIVE. *AK

20150721Component: SEAT BELTS

THERE WAS A RECALL ISSUED FOR MY CAR FOR THE AUTOMATIC SHOULDER BELT ON 02-17-1997, CAMPAIGN # 68702. MINE WAS ORIGINALLY REPAIRED ON 05-23-2006. IT HAS SINCE FAILED AGAIN AND MY LOCAL MAZDA DEALER, #

20090212Component: SEAT BELTS

TL*THE CONTACT OWNS A 1990 MAZDA RX7. WHILE THE VEHICLE WAS PARKED, THE CONTACT NOTICED THAT THE FRONT DRIVER'S AND PASSENGER SIDE AUTOMATIC SHOULDER BELT RETRACTORS WERE INOPERATIVE. THE MALFUNCTIO

Showing the 5 most serious of 31 complaints filed with NHTSA.

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