Nissan variable valve DTC
This TSB applies to all 1996-2007 Nissan engines equipped with variable valve timing (VQ35, QR25, QG18, GA16, VQ40, VK56, MR18 and MR20).
If you confirm that the MIL is on with P0011, P0014, P0021, P0024, P1110 or P1135 stored, do not automatically replace the variable valve timing solenoid or the sprocket(s) without first performing the complete diagnostics indicated in the EC section of the service manual.
The first steps in the complete diagnostics is to make sure that:
- Engine oil is at the operating level
- Oil pressure is normal when measured with a gauge at the pressure switch port
NOTE: The engine may also exhibit a camshaft sprocket rattle noise and/or other engine noise.