Possible causes – Cam timing improperly set– Continuous oil flow to the VCT piston chamber– VCT solenoid valve stuck open– Camshaft advance mechanism binding (VCT unit). Tech notes There is a factory service bulletin for the P1388 code on Jaguar
Possible causes – Cam timing improperly set– Continuous oil flow to the VCT piston chamber– VCT solenoid valve stuck open– Camshaft advance mechanism binding (VCT unit). Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1388 FORD Description
Possible causes – Cam timing improperly set– Continuous oil flow to the VCT piston chamber– VCT solenoid valve stuck open– Camshaft advance mechanism binding (VCT unit). Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1388 Description The
Possible causes – Cam timing improperly set– Continuous oil flow to the VCT piston chamber– VCT solenoid valve stuck open– Camshaft advance mechanism binding (VCT unit). Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1388 MAZDA Description
Possible causes – Faulty ASD Relay– Faulty CNG Relay– ASD or CNG Relay harness is open or shorted– ASD or CNG Relay circuit poor electrical connection– ASD or CNG Relay poor ground or supply voltage condition When is the code
Possible causes – Faulty ASD Relay– Faulty CNG Relay– ASD or CNG Relay harness is open or shorted– ASD or CNG Relay circuit poor electrical connection– ASD or CNG Relay poor ground or supply voltage condition When is the code
Possible causes – Faulty ASD Relay– Faulty CNG Relay– ASD or CNG Relay harness is open or shorted– ASD or CNG Relay circuit poor electrical connection– ASD or CNG Relay poor ground or supply voltage condition When is the code