_Aramchek_ Posted April 5, 2008 Share Posted April 5, 2008 Ok,managed to finally get a obd reader on my car to check the codes I've been getting for a while,accompanying my misfire and hesitation problem. p0507 IAC circuit idle speed higher than expected. it is sitting at just over 1100 rpm's at idle. and this is probably my misfire p0170 Feul trim bank one. This is a '96 OBW with a 1995 2.2 in it. I'd like some advice as to maybe where I should go from here,especially on the second code. Any help is appreciated. Quote Link to comment Share on other sites More sharing options...
Cougar Posted April 6, 2008 Share Posted April 6, 2008 You might try replacing the PCV valve and then the O2 sensor if PCV replacement doesn't help. Quote Link to comment Share on other sites More sharing options...
nipper Posted April 6, 2008 Share Posted April 6, 2008 any refercen to fuel trim or A/F ratio is the O2 sensor(s). Front sensor should be OE Attack that first. Also if it hasnt been done, a tune up wouldnt hurt either. nipper Quote Link to comment Share on other sites More sharing options...
_Aramchek_ Posted April 6, 2008 Author Share Posted April 6, 2008 Thanks. Quote Link to comment Share on other sites More sharing options...
porcupine73 Posted April 6, 2008 Share Posted April 6, 2008 Not sure if this helps but here it is: DTC P0507 - Idle Control System Higher Than Expected http://endwrench.com/images/pdfs/DTCInfo.pdf Quote Link to comment Share on other sites More sharing options...
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