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Home >> BMW >> 1996 >> 328i 2D Convertible, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnosis - Tests Without Codes >> Symptoms >> Engine Backfires

Engine Backfires

Air leak into/from exhaust system.
Intake manifold vacuum leak.
Burned valve.
Lean air/fuel mixture.
Incorrect ignition timing.
Incorrect valve timing.

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