Prelude L4-1958cc DOHC (1989)
defroster, cooling fan, and air conditioner are not operating.
Idle speed should be:
Manual: 750 ± 50 rpm
Automatic: 790 ± 50 rpm (in "N" or "P")
7.
Check the Idle speed in the following conditions.
a. With headlights ON (HI) and the rear window defogger ON.
b. While the steering wheel is turning.
c. If applicable, with Automatic transmission models in gear (except N or P)
Idle speed should remain stable at: 750 ± 50 rpm
8.
Check the idle speed with the heater fan switch on HIGH (right end), air conditioner ON.
Idle speed should be: 750 ± 50 rpm
9. If the idle speed is not within spec., see "DIAGNOSIS BY SYMPTOM" under "COMPUTERIZED ENGINE CONTROLS".
