Top Tip :Idle Air Value

Top Tip : Idle Air Value, Activated by the ECU to either mechanically or pneumatically control the idle speed of the engine. A secondary use of the valve is to reduce emission by allowing air to enter the engine on overrun conditions. failure symptoms are stalling and or sticking idle. pneumatic valve can often be cleaned as a temporary test, with mechanical stepper motor type’s failure is irreparable

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