99 Maxima V6

compprat · May 17th, 2007, 07:17 PM

Scanned the car and came up with P0400A P0325. Replaced the EGR valve.

My problem is, is that the car still comes up with a check engine light even after we cleared the codes.

ebQuester · May 31st, 2007, 08:54 PM

i had the same problem with my Quest. Replaced the EGR valve and still the light stayed on. Turns out that mice had been chewing on the wiring harness behind the intake manifold and was causing a short to the EGR Valve. Hope this helps.

metro273 · May 31st, 2007, 11:36 PM

Common problem on the VGs...a plugged EGR tube. You need to remove this tube and the EGR temp sensor and get to all of the carbon build-up in these 2 items and clean the crap out of them. They're creating a blockage to the EGR valve...