Possible causes
– Leaking fuel injector or pressure regulator
– High fuel pressure condition
– Leak in exhaust system
– Faulty Oxygen (O2) Sensor
– Faulty Mass Air Flow (MAF) sensor
– High fuel pressure condition
– Leak in exhaust system
– Faulty Oxygen (O2) Sensor
– Faulty Mass Air Flow (MAF) sensor
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)