General Information

Engine Control
P0014 'B' Camshaft Position - Timing Over-Advanced or System Performance (Bank 1) - General Information

Component Location





General Description

The CVVT (Continuously Variable Valve Timing) system is installed to the chain sprocket of the intake camshaft. This system controls the intake camshaft to provide the optimal valve timing for every driving condition. The ECM controls the Oil Control Valve (OCV), based on the signals output from mass air flow, throttle position and engine coolant temperature. The CVVT controller regulates the intake camshaft angle using oil pressure through the OCV. As result, the relative position between the camshaft and the crankshaft becomes optimal, and the engine torque improves, fuel economy improves, exhaust emissions decrease under overall driving conditions.

DTC Description

If there is a delay between the target angle and the real angle over 5 times, ECM sets DTC P0014.

DTC Detecting Condition





Specification





Diagnostic Circuit Diagram





Signal Waveform & Data








Fig.1) Normal waveform of OCV & EX-CMPS at idle.
Fig.2) Normal waveform of OCV & EX-CMPS at acceleration with load.