how to fix camshaft position timing over advanced or system performance bank 2 on 2003 Nissan Murano

code p0021 poor idling

by in Garnet Valley, PA on February 28, 2013
1 answer
ANSWER by on February 28, 2013
A P0021 DTC trouble code may be caused by one or more of the following: Incorrect camshaft timing Wiring problems (harness/wiring) in intake timing control valve control solenoid system Continuous oil flow to VCT piston chamber Failed timing valve control solenoid (stuck open) A code P0021 refers to the VVT (variable valve timing) or VCT (variable camshaft timing) components and the car's PCM (powertrain control module, also called an ECM). That consists of a few different components but the P0021 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is above a set limit (over-advanced), the engine light will be illluminated and the code will be set. The "A" camshaft is either the intake, left, or front camshaft. A P0021 engine code is basically the same as a P0011 code, except this is for Bank 2, not Bank 1. The first thing I'd do is check oil level- low oil will also cause this. Also if you put too heavy weight oil could be restricting oil pressure. Hope this helps.