Possible causes
– Dirty Oil
– Low engine oil level
– Valve Timing Control (VTC) open or shorted circuit
– Valve Timing Control (VTC) electrical connector
– Faulty Valve Timing Control (VTC)
– Damaged Engine Control Module (ECM)
– Low engine oil level
– Valve Timing Control (VTC) open or shorted circuit
– Valve Timing Control (VTC) electrical connector
– Faulty Valve Timing Control (VTC)
– Damaged Engine Control Module (ECM)
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– Lack/Loss of power
– Engine rough idle
– Lack/Loss of power
– Engine rough idle
P0011 ACURA OBD Code Description
The Engine Control Module (ECM) optimizes the valve timing using the Valve Timing Control (VTC). The ECM sends a target duty cycle control signal to the VTC. This control signal regulates the oil pressure supplied to the VTC. The VTC can advance or retard the engine timing.