SERVICING INFORMATION 11-7
Complaint
Symptom and possible causes
Remedy
Engine runs poorly in
high speed range.
Defective air flow system
1. Clogged air cleaner element.
2. Defective throttle valve.
3. Defective IAC valve.
4. Sucking air from throttle body joint.
5. Imbalanced throttle valve synchronization.
Defective control circuit or sensor
1. Low fuel pressure.
2. Defective throttle position sensor.
3. Defective intake air temp. sensor.
4. Defective camshaft position sensor.
5. Defective crankshaft position sensor.
6. Defective gear position switch.
7. Defective intake air pressure sensor.
8. Defective atmospheric pressure sensor.
9. Defective ECM.
10. Throttle position sensor out of adjustment.
11. Defective fuel tank pressure control valve.
Clean or replace.
Adjust or replace.
Replace.
Repair or replace.
Adjust.
Repair or replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Adjust.
Replace.
Engine lacks power.
Defective engine internal/electrical parts
1. Loss of tappet clearance.
2. Weakened valve springs.
3. Valve timing out of adjustment.
4. Worn piston rings or cylinders.
5. Poor seating of valves.
6. Fouled spark plug.
7. Incorrect spark plug.
8. Clogged injector.
9. Throttle position sensor out of adjustment.
10. Clogged air cleaner element.
11. Imbalanced throttle valve synchronization.
12. Sucking air from throttle valve or vacuum hose.
13. Too much engine oil.
14. Defective fuel pump or ECM.
15. Defective crankshaft position sensor and ignition coil.
Defective control circuit or sensor
1. Low fuel pressure.
2. Defective throttle position sensor.
3. Defective intake air temp. sensor.
4. Defective camshaft position sensor.
5. Defective crankshaft position sensor.
6. Defective gear position switch.
7. Defective intake air pressure sensor.
8. Defective atmospheric pressure sensor.
9. Defective ECM.
10. Imbalanced throttle valve synchronization.
11. Throttle position sensor out of adjustment.
12. Defective fuel tank pressure control valve.
Adjust.
Replace.
Adjust.
Replace.
Repair.
Clean or replace.
Adjust or replace.
Clean.
Adjust.
Clean.
Adjust.
Retighten or replace.
Drain out excess oil.
Replace.
Replace.
Repair or replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Adjust.
Adjust.
Replace.
Summary of Contents for AN650 2002
Page 1: ......
Page 47: ...PERIODIC MAINTENANCE 2 29 ...
Page 124: ...ENGINE 3 73 POSITION OF CAMSHAFTS AND SPROCKETS 15 1 1 2 2 3 3 ...
Page 137: ...CVT 5 3 Remove the CVT mounting bolts Remove the CVT assembly ...
Page 425: ...SERVICING INFORMATION 11 21 FUEL TANK MOUNTING ...
Page 426: ...11 22 SERVICING INFORMATION FUEL TANK MOUNTING Only for E 28 ...
Page 462: ...Prepared by July 2002 Part No 99500 36110 01E Printed in Japan 464 ...
Page 463: ......