Corolla Wagon L4-107.5 1762cc 1.8L DOHC (7A-FE) (1993)
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Idle Up Control Valve: Description and Operation
A/C Idle-Up Valve
PURPOSE
The A/C idle-up VSV opens a throttle valve bypass line to maintain idle quality during A/C operation.
LOCATION
The VSV is mounted to the firewall in the engine compartment.
OPERATION
The solenoid is located in-line with a throttle valve bypass hose. When energized by the ECM, air is allowed past the throttle valve, raising the idle
speed.
