Possible causes
– Faulty oxygen sensor
– Air leak near sensor
– Low fuel pressure
– Faulty Mass Air Flow (MAF) signal
– Fualty Manifold Absolut Pressure (MAP) signal
– Air leak near sensor
– Low fuel pressure
– Faulty Mass Air Flow (MAF) signal
– Fualty Manifold Absolut Pressure (MAP) signal
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)