一文搞清: Backfiring , Afterfiring, Over-lean, Over-rich, Pre-ignition, Detonation
February 26, 2026
Backfiring fuel-air mixture is ignited in intake manifold indicate over-lean mixture Afterfiring fuel-air mixture is ignited in exhaust system lot of black smoke and bright orange flame induced at the exhaust pipe indicate over-rich mixture, or no-ignition Over-lean incorrect mixture – air is far more than fuel can induce backfiring and detonation Over-rich incorrect
