TROUBLE DIAGNOSES - Diagnostic Table (Cont'd) - Symptom & Condition 11: Abnormal idling - high idle (after warm-up)
EF & EC-49flowchartDiagnostic Table (Cont'd)
Symptom & Condition 11 - Possible Causes Matrix
SPECIFICATIONS
Possible CausesMixture ratio
1
2O
3O
4
5O
6O
7
8
9O
10
11
SPECIFICATIONS
Possible CausesIgnition timing (too advanced)
1O
2
3
4
5
6
7
8
9
10
11
INTAKE SYSTEM
Possible CausesAir duct (leaks)
1
2O
3
4
5
6
7
8
9
10
11
INTAKE SYSTEM
Possible CausesThrottle chamber (air leaks)
1
2
3
4O
5
6
7
8
9
10
11
INTAKE SYSTEM
Possible CausesThrottle valve (stuck control wire)
1
2
3
4O
5
6
7
8
9
10
11
INTAKE SYSTEM
Possible CausesIntake manifold (gasket) (air leaks)
1
2O
3
4
5
6
7
8
9
10
11
INTAKE SYSTEM
Possible CausesAir regulator (stuck open)
1
2
3O
4
5
6
7
8
9
10
11
INTAKE SYSTEM
Possible CausesA.A.C. valve
1
2
3
4
5
6
7O
8
9
10
11
INTAKE SYSTEM
Possible CausesF.I.C.D. solenoid (remaining ON)
1
2
3
4
5
6
7
8O
9
10
11
CONTROL SYSTEM
Possible CausesCrank angle sensor
1
2
3
4
5
6
7
8
9O
10
11
CONTROL SYSTEM
Possible CausesAir flow meter
1
2
3
4
5
6
7
8
9
10O
11
CONTROL SYSTEM
Possible CausesEngine temperature sensor
1
2
3
4
5
6
7
8
9O
10
11O
CONTROL SYSTEM
Possible CausesIdle switch (remaining OFF)
1
2
3
4
5
6
7O
8
9O
10
11
OTHERS
Possible CausesBattery (voltage too low)
1
2
3
4
5
6
7
8
9
10
11
SERVICE PROCEDURE
Service Procedure - Symptom 11: Abnormal idling - high idle (after warm-up)
Rendering diagram…
See also
EF & EC-22Direct Ignition System (Cont'd) — Checking Ignition Timing and Idle SpeedEF & EC-25IDLE SPEED/IGNITION TIMING/IDLE MIXTURE RATIO INSPECTIONEF & EC-82Diagnostic Procedure 2 — CRANK ANGLE SENSOR (Code No. 11)EF & EC-84TROUBLE DIAGNOSES — Diagnostic Procedure 3 — AIR FLOW METER (Code No. 12)EF & EC-86Diagnostic Procedure 4 — ENGINE TEMPERATURE SENSOR (Code No. 13)EF & EC-94Diagnostic Procedure 7 — IDLE SWITCH (Switch ON/OFF diagnosis)EF & EC-106Diagnostic Procedure 12 — AUXILIARY AIR CONTROL (A.A.C.) VALVE (Not self-diagnostic item)EF & EC-110TROUBLE DIAGNOSES — Diagnostic Procedure 14: AIR REGULATOR (Not self-diagnostic item)HA section