toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Knock Sensor > < Idle Speed/Throttle Actuator - Electronic|Locations|Page 2149
Page 1
background image

Idle Up Control Valve: Testing and Inspection

AIR CONTROL VALVE

INSPECTION

1. TURN AIR CONDITIONING SWITCH OFF
2. CHECK IDLE-UP

a. Start engine and run it at idle.
b. Fully turn the steering wheel.
c. Check that the engine speeds decreases when the vacuum hose of the air control valve is pinched.
d. Check that the engine speeds increases when the hose is released.

Knock Sensor > < Idle Speed/Throttle Actuator - Electronic|Locations|Page 2149