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Home >> Yugo >> 1988 >> GVL >> Repair and Diagnosis >> Engine Performance >> System >> Air Injection System >> Description >> Diverter Valve

Diverter Valve

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The diverter valve shuts off the supply of fresh air to the air injection lines during engine deceleration in order to prevent backfiring in the exhaust system. A vacuum signal operates the diverter valve, and on deceleration will divert air pump output, for about 4 seconds, to the atmosphere.