oxygen sensor circuit or ecm
ECM PCM - Circuit error or EGR valve solenoid 3 - Circuit error ( Depending on the car model )
A DTC 55 is used to end all DTC messages. This code does not show on the DRB tool and indicates a completion of the stored codes on the Malfunction Indicator Lamp (check engine lamp).
Completion of diagnostic trouble code display on the malfunction indicator lamp (check engine lamp)
fuel lean monitor (2.2l engine)