P0021 2012 FORD FUSION – Intake Camshaft Position Timing Over Advance Bank 2

 

P0021: DIY Repairing Video Tutorial

https://youtu.be/T8aepJyvnbg

Check out nonda Auto DIY Center for more engine error code repairing videos.
https://www.youtube.com/playlist?list=PL-Lyko0O0oxHe1AGvzwAz-wokJPXAtW97

 

P0021 2012 FORD FUSION Possible Symptoms

  Engine Light ON (or Service Engine Soon Warning Light),Lack/Loss of power,Engine rough idle  

P0021 2012 FORD FUSION Possible Causes

  Camshaft timing incorrectly set,Continuous oil flow to the VCT piston chamber,Erratic camshaft position due to low oil pressure,Oil flow restriction in the oil passages or the VCT valve body,VCT solenoid valve stuck open,Open or short in the VCT circuit,Open VPWR circuit,Camshaft advance mechanism binding (VCT unit),Damaged VCT phaser,Damaged camshaft position (CMP) sensor,Open or short in the CMP sensor circuits,Radio frequency interference (RFI) interference  

P0021 2012 FORD FUSION Description

  The powertrain control module (PCM) monitors the variable camshaft timing (VCT) position for an over-advanced camshaft timing. The test fails when the camshaft timing exceeds a maximum calibrated value or remains in a over advance condition- Camshaft timing over advanced.