Possible causes
– Timing belt installation
– Faulty Camshaft Adjustment Valve 1
– Camshaft Adjustment Valve 1 harness is open or shorted
– Camshaft Adjustment Valve 1 circuit poor electrical connection
– Faulty Camshaft Adjustment Valve 1
– Camshaft Adjustment Valve 1 harness is open or shorted
– Camshaft Adjustment Valve 1 circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)