11.4 Front Oxygen Sensor Failure......................................................................................38
11.5 Rear Oxygen Sensor Failure.......................................................................................40
11.6. Coolant Temperature Sensor Failure.........................................................................42
11.7 Failure in Driver Stage of Injector..............................................................................43
11.8 Failure in Driver Stage of Canister Control Valve......................................................44
11.9 Failure in Driver Stage of Malfunction Indicator Lamp (MIL)..................................45
11.10 Failure in Driver Stage of 1#, 2# Coils of Step Motor..............................................46
11.11 Craftshaft Position Sensor Failure............................................................................47
11.12 Craftshaft Position Sensor Failure............................................................................48
11.12 Ignition Coil Failure..................................................................................................49
11.13 Accelerator Pedal Position Sensor Failure................................................................50
11.14 Double Brake Swtich................................................................................................51
11.15 Theft-proof Control System Failure..........................................................................52
12. Steps for Implementation of Failure Diagnosis by Engine Symptom...................................53
12.1 Perform Preliminary Inspection First before Following the Steps for Implementation
of Failure Diagnosis by Engine Symptom..........................................................................53
12.2 The Engine Does not Rotate or Rotates Slowly when Starting...................................55
12.3 When Starting, Engine Can be Dragged to Rotate but Can not Start with Success....56
12.4 Warm Starting Difficulty............................................................................................58
12.5 Engine Speed is Normal, but it is Difficult to Start at any Time................................60
12.6 Cold Starting Difficulty..............................................................................................62
12.7 Unsteady Idle Speed at Any Time..............................................................................64
12.8 Unsteady Idle Speed during Warming up Process......................................................66
12.9. Unsteady Idle Speed after Warming up.....................................................................67
12.10 Unsteady Idle Speed or Extinguish with Load (A/C etc.).........................................69
12.11 Periodic Unsteadiness (Have to Perform Self-study again after ECU is Power off)70
12.12 Too High Idle Speed (Have to Perform Self-study again after ECU is Power off)..72
12.13. Engine Revolution Speed is too Low or Flameout..................................................73
12.14 Slow Response when Accelerating...........................................................................75
12.15 Poor Performance and Disability when Accelerating...............................................77
12.16 Unable to Reach the Maximum Revolution when Accelerating...............................79
12.17 When Releasing Accelerator Pedal after Acceleration, Unsteady Idle Speed Occurs
at Instant, even Extinguishes...............................................................................................81
12.18 A/C System Failure...................................................................................................83
13. Safety Precautions for System Maintenance.........................................................................84
13.1 Safety Precautions for Diagnosis and Maintenance of Gasoline Injection Electronic
Control System...................................................................................................................84
