Symptom: a mileage of 92,000 km Peugeot 307 sedan, when the engine hot the car sometimes will stall. Troubleshooting: First confirm the failure, found the car has appeared twice flameout phenomenon, but when check does not appear this fail…

A mileage over 250,000 km, configure the M120 engine and automatic transmission, chassis model W140 Mercedes 600SEL sedan. The car engine idle speed is normal, but accelerated to 1500 ~ 3000r/min the exhaust black smoke. M120 engine is V12…