![]() ![]() The first letter of the fault code will indicate the family of the diagnostic trouble code. There is no variation in valve timing of the exhaust cam because the exhaust camshaft is driven by the timing belt. What causes the P0011 Fault Code? P0011 -“A” Camshaft Position – Timing Over-Advanced or System Performance (Bank 1) The CVVT (Continuously Variable Valve Timing) system is installed to the chain sprocket of the exhaust camshaft. As the camshaft sensor becomes weaker, it does not send the signal to the on-board computer, and as a result, the ignition system cannot produce a spark correctly. Remember that the “A” camshaft can either be located in the front, left, or intake side of the motor, depending on the orientation of the engine. Engine Won’t Start The most common sign of all bad camshaft position sensor symptoms is that the car will be more difficult to start, or it won’t start at all. Take note that bank 1 is easily located by verifying the position of cylinder 1.Īnd even though the P0011 code is also associated with the ECM or engine control module, this trouble code is specifically attributed to the camshaft timing. This problem is usually associated with V6 or V8 motors equipped with variable-valve timing (VVT), variable-camshaft timing (VCT), or a derivative of both. The source of the P0011 code may sound complicated, but it can be caused by something as trivial as dirty engine oil. This indicates a difference between the desired and. The code can also be triggered if the camshaft timing in bank 1 is too advanced even after the ECU commands a lower timing. The P0012 trouble code means that the camshaft position of intake A is over-retarded at bank 1 (cylinder 1). It’s usually fixed by changing engine oil. The P0011 OBD2 Trouble Code means the ECU has detected the intake camshaft in bank 1 has a more advanced timing. Now that’s quite a mouthful, but the meaning is simple. The technical definition of P0011 OBD2 code is Camshaft Position ‘A’ Timing Over-Advanced or Bank 1 System Performance. ![]()
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