P1381 Variable Cam Timing Overadvanced (Bank #1)/ Misfire Detected No Communication with BCM

Possible causes
  • Cam timing improperly set.
  • No oil flow to the VCT piston chamber.
  • Low oil pressure.
  • VCT solenoid valve stuck closed.
  • Camshaft advance mechanism binding (VCT unit).
    • Symptoms
    – Engine Light ON (or Service Engine Soon Warning Light)
    P1381 Description
    The comprehensive component monitor (CCM) monitors the VCT position for an over-advanced camshaft timing. The test fails when the camshaft timing exceeds a maximum calibrated value or remains in an advanced position.
    P1381 Information for specific makes
    P1381 ACURA
    P1381 BUICK
    P1381 CADILLAC
    P1381 CHEVROLET
    P1381 DODGE
    P1381 FORD
    P1381 GMC
    P1381 HONDA
    P1381 JAGUAR
    P1381 PONTIAC
    P1381 SATURN
    P1381 GEO