Possible causes – Faulty HO2S21– Fualty Mass Air Flow (MAF) Sensor– HO2S21 harness is open or shorted– HO2S21 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Car obd codes, car OBD-ii codes, car Fault codes , Car Trouble codes, Car Error codes, diagnostic codes
Possible causes – Faulty HO2S21– Fualty Mass Air Flow (MAF) Sensor– HO2S21 harness is open or shorted– HO2S21 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)