Service Engine Soon Light/ECM on 2001 Nissan Maxima

Hi, my "Service Engine Soon" light came on with a code of P0505...I had the Idle Air Control Valve replaced and the light is still on. Now the car revs up and down while in park and sometimes while in drive. I was told the Engine Control Module may have burned out because I did smell a funny oder a while back as well. I was told by the dealership that the part itself is 918.00 plus labor. Can I take my car somewhere else where it's cheaper and have it done for less? Can I try having the IACV relearn first? Thanks for whatever info you can provide!!

by in Charlotte, NC on June 07, 2010
1 answer
ANSWER by on March 24, 2011
Hi im having the same problem with my car i have replaced the mass air flow sensor, cleaned the throttle body, and camshaft position sensor and car is still idling up and down. Did you ever get your car fixed?
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