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Home >> Nissan-Datsun >> 1973 >> 240Z Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> Air Injection System >> Trouble Shooting & Testing >> Excessive Backfire In Exhaust System
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Excessive Backfire In Exhaust System

Anti-Backfire valve vacuum line collapsed, plugged, disconnected or leaking, defective or malfunctioning anti-backfire valve, improper carburetor fuel mixture adjustment.

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