FixVault

Home › BMW › 1995 › 318is Automatic › Repair and Diagnosis › Engine Performance › System › Engine Controls - Tests W/O 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.