Idle Compensator
EF & EC-194prose procedureN14 4WD for Europe, B13 GA16DS for Europe and Gulf standard models have idle compensators No. 1 and No. 2. Others have only idle compensator No. 1.
The idle compensator is basically a thermostatic valve which introduces air directly from the air cleaner to the intake manifold to compensate for abnormal enrichment of mixture in high idle temperatures and to stabilize the engine. The idle compensator is installed on the air cleaner.
N14 4WD for Europe, B13 GA16DS for Europe and Gulf standard models have idle compensators No. 1 and No. 2. The others have only idle compensator No. 1.
Inspection
- 1Remove air cleaner.
- 2Suck on hose to make sure neither idle compensator opens.
SEF751H - 3Direct warm air to idle compensator with a heat gun. And measure operating temperature of idle compensator.Place thermometer as close as possible to idle compensator sensor.
- 4Idle compensator is in good condition if airflow opens idle compensator when it reaches operating temperature.Take care not to bend or damage bimetals of idle compensator.
Idle compensator opening temperature
Idle compensator No. 1
Below 55 (131)
Bimetal functionFully closed
55 - 65 (131 - 149)
Bimetal functionClosed or open
Above 65 (149)
Bimetal functionFully open
Idle compensator No. 2
Below 65 (149)
Bimetal functionFully closed
65 - 75 (149 - 167)
Bimetal functionClosed or open
Above 75 (167)
Bimetal functionFully open