Reply To: Re: 2007 Nissan Quest code P0021

New Topics Forums General Discussion 2004 – 2009 Nissan Quest 2007 Nissan Quest code P0021 Reply To: Re: 2007 Nissan Quest code P0021

#5845

dtownfb
Participant

Here’s the technical service bulletin for P0021:

APPLIED VEHICLES: All 1996 – 2009 with Variable Valve Timing

APPLIED ENGINES: VQ35; QR25; QG18; GA16; VQ40; VK56; MR18; MR20

IF YOU CONFIRM

The MIL is on with any of the following DTCs stored:
• P0011, P0014, P0021, P0024, P1110, P1135,

NOTE: The engine may also have Camshaft Sprocket rattle noise and/or other
engine noise.

ACTION
Do Not replace the variable valve timing Solenoid Valve or the Sprocket(s) without
performing the complete diagnostics indicated in the EC section of the Service Manual.

The first steps in the complete diagnostic are to make sure the:
• Engine oil is at the operating level; add oil if needed. Refer to the Service Manual
for low oil level diagnoses if needed.
• Oil pressure is normal when measured with a gauge at the pressure switch port.

Refer to the Service Manual for low oil pressure diagnoses if needed.