ACURA LEGEND 1988 Service Repair Manual

FIRST GENERATION ACURA LEGEND COUPE
OWNERS MANUAL

Finally! Due to Honda taking too long to do something about the Acura Legend
G1 manual on their website we, th e community, have taken action!
Here, in its complete form, is the 1987 Acura Legend Coupe manual. Please note
there are 1988, 1989 and 1990 supplementals. Th ey are located at the bottom of the
document, in what I hope to be chronological order. Please notify me of any mistakes I
have made in the creation of th is document. If there are mistakes in the original manual I
am willing to add a community supplemental. Thank you, maytagman.

GENERAL 
~VIN  Number  Breakdown.....................6  
~General  Info...................................7 ‐21 
~Abbreviations  Used..........................22  
~Special  Tools..................................23  
~Specs...........................................28 ‐39 
~Maintenance  Schedule.....................40  
~Tune  Up........................................41 ‐49 
 
 
ENGINE  SECTION 
~Timing  Belt.....................................50  
~Cylinder  Heads................................57  
~Engine  Removal/Installation...............68 ‐75 
~Intake  Manifold...............................76  
~Exhaust  System..............................76 ‐80 
~Cooling  System...............................81  
~Engine  Block  (all  internal  components).87 ‐105 
~Oil  (Lubrication)  System...................106  
~Component  Locations......................114  
~Vacuum  System  and  Diagrams...........118  
~Electrical  Components  Diagrams.........129  
 
 
PGM ‐FI  (Check  Engine)  SYSTEM 
~Symptoms  to  Systems  Chart..............132  
~ECU  Codes/Testing  Procedure............134  
~O2  Senors......................................140  
~Mixture  Compensation  (Non  USDM)......142  
~MAP  Sensor....................................144   
~Crank/CYL  Sensor............................148  
~TW  Sensor.....................................152  
~Throttle  Angle  Sensor.......................154  
~TDC  Sensor....................................156  
~TA  Sensor......................................159  
~IMA  Sensor.....................................161  
~PA  Sensor.......................................163  
~Ignition  Output  Signal........................165  
~Vehicle  Speed Pulser.........................167  
~Ignition  Timing  Adjuster.....................169  

 
 
IDLE CONTROL  SYSTEM 
~System  to  Sub ‐System  chart.............161  
~EACV.............................................  172  
~Starter  Signal..................................175  
~Alternator  FR  Signal..........................176  
~A/T  Shift  Poisition  Signal....................178  
~P/S  Oil  Pressure  Signal.......................180  
~M/T  Neutral  Switch  Signal..................181  
~Clutch  Switch Signal.........................182  
~Fast  Idle  Control...............................184  
~Idle  Speed.......................................185  
 
 
 
FUEL  SYSTEM 
~Symptom  to  Subsystem  Chart............186  
~Fuel  Pressure  (Inspection/Relieving)....187  
~Fuel  Injectors.................................189  
~Injector  Resistor..............................190  
~Pressure  Regulator...........................190  
~Fuel  Filter.......................................196  
~Fuel  Pump.......................................197  
~Main  Relay......................................198  
~Fuel  Tank.......................................201  
 
 
 
AIR  INTAKE  SYSTEM  
~Symptom  to  Subsystem  Chart............202  
~Throttle  Cable.................................203  
~Throttle  Body..................................204  
~Dashpot  System..............................206  
~Bypass  Control  System......................207  
 
 
 
 

EMISSIONS CONTROL  SYSTEM 
~Symptom  to  subsystem  chart...............212  
~Tail  Pipe  Emmison...............................213  
~Catalytic  Converter............................213  
~Air  Injection  System...........................214  
~EGR  System......................................216  
~PCV  System......................................220  
~Evaporative  Emissions  Control..............221  
~Resonator  Control  System...................223  
 
 
 
CLUTCH 
~Clutch  and Manual  Transmission.........225 ‐248 
 
 
AUTOMATIC  TRANSMISSION 
~Auto  Tranny  and  flow  charts..............249 ‐306 
 
 
POWER  STEERING 
~Power  Steering  System......................307 ‐359 
 
 
 
SUSPENSION 
~Suspension  System...........................360 ‐384 
 
 
BRAKES  (including  ABS) 
~Braking  System.................................385 ‐456 
 
 
 
 

BODY 
~Doors/Windows.................................457  
~Sunroof  (Removal/Installation).............492  
~Seats............................................  ..500  
~Console..........................................  .508  
~Carpet...........................................  .509  
~Dash.............................................  .510‐ 513 
~Bumpers..........................................  514 ‐516  
~Hood/Trunk......................................516 ‐522 
 
 
 
CLIMATE  CONTROL  SYSTEM 
~Heater...........................................  ..523  
~Auto  Climate  Control...........................551  
~A/C  Compressor.................................594  
~Evaporator/Condensor.........................602  
 
 
 
ELECTRICAL  SYSTEM 
~Overview.........................................  .616 ‐645  
~Ignition  Switch...................................646  
~Starting  System.................................648  
~Ignition  System..................................660  
~Charging  System  (alternator)................670  
~Cooling  Fan Control  System..................674  
~Gauge  Assembly.................................682  
~Lighting  System.................................725  
~Stereo  Sound  System.........................754  
~Clock/Horn/Trunk  Pop/Cig  Lighter..........759 ‐766 
~Power  Door Locks...............................767  
~Power  Seat.......................................774  
~Sunroof..........................................  ..784 
~Power  Door Locks...............................789  
~Power  Windows/Mirrors........................798  
~Wipers/Washer...................................806  
~Cruise  Control....................................822