Idle Speed Setting — Inspection/Adjustment

6-69prose procedure

Idle speed specs differ by engine (SOHC vs DOHC) and market code: SOHC With CATA and KQ 750±50, KY 780±50, DOHC Ex. KQ 800±50 (steps 6-7); step 8 SOHC and KQ 780±50, DOHC Ex. KQ 800±50.

Inspection/Adjustment

1
Start the engine and warm it up to normal operating temperature (the cooling fan comes on).
2
Connect a tachometer.
3
Disconnect the 2P connector from the EACV.
4
Check idling in no-load conditions in which the headlights, blower fan, rear defogger, cooling fan, and air conditioner are not operating. Idle speed should be: 650 ± 50 min⁻¹ (rpm). Adjust the idle speed, if necessary, by turning the idle adjusting screw.
If the idle speed is excessively high, check the throttle control system (page 6-86).
5
Reconnect the 2P connector on the EACV, then remove HAZARD fuse in the main fuse box for 10 seconds to reset ECU.
6
Idle the engine with no-load conditions in which the headlights, blower fan, rear defogger, cooling fan, and air conditioner are not operating for one minute, then check the idle speed. (See idle speed table below.)
7
Idle the engine for one minute with headlights (Hi) and rear defogger ON and check the idle speed. Idle Speed should be: (see table below).
8
Idle the engine for one minute with heater fan switch at HI (right end) and air conditioner on, then check the idle speed. Idle Speed should be: (see table below).
If the idle speed is not within specifications, see System Troubleshooting Guide on page 6-59.