Possible causes – Incorrect camshaft timing– Faulty Valve Control Timing (VCT) position solenoid– Valve Control Timing (VCT) position circuit is open or shorted– Valve Control Timing (VCT) position circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Lack/Loss of power– Engine rough idle P0021 FORD OBD Code Description The…