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Home >> Isuzu >> 1988 >> Trooper II Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Air Injection System >> Component Testing >> Air Switching Valve >> All Others
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Air switching valve is operating normally if secondary air continues to flow through valve for a few seconds after accelerator pedal is depressed to floor and quickly released. If secondary air continues to flow after 5 seconds, replace air switching valve.

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