NissanNismoZ Posted April 17, 2012 Share Posted April 17, 2012 It may just be me as it usually only happens when cold..but today, this morning when i got in the truck and started it up..it idled fairly high at 2500..i continued to do my chores about 5 mins later and it was still at 2500! I kicked the throttle and it went down to around 1500..then down to 1100. it wasnt really all that cold out..but this isnt the first time it's done this.. sometimes the idle will go up and down.. and not stop "searching"? Any ideas? Thanks! It's nothing critical yet, but i want to keep it from happening.. Link to comment Share on other sites More sharing options...
ejin4499 Posted April 17, 2012 Share Posted April 17, 2012 You might see if your iacv-aac is sticking. its that long tower looking thing behind your egr valve if you tap it after your engine has warmed up and your idle drops that might be your issue. Link to comment Share on other sites More sharing options...
1994SEV6 Posted April 18, 2012 Share Posted April 18, 2012 You might see if your iacv-aac is sticking. its that long tower looking thing behind your egr valve if you tap it after your engine has warmed up and your idle drops that might be your issue. would you mind posting a picture of this IAC valve? I think I have the same issue, but I don't think I have all that complicated EGR stuff (therefore I am uncertain where my IAC is) because mine is a 1994. Link to comment Share on other sites More sharing options...
nismothunder Posted April 18, 2012 Share Posted April 18, 2012 Check the fuel pressure regulator hose on the rear of the intake. Link to comment Share on other sites More sharing options...
adamzan Posted April 19, 2012 Share Posted April 19, 2012 Is your throttle cable sticking? Link to comment Share on other sites More sharing options...
ejin4499 Posted April 19, 2012 Share Posted April 19, 2012 would you mind posting a picture of this IAC valve? I think I have the same issue, but I don't think I have all that complicated EGR stuff (therefore I am uncertain where my IAC is) because mine is a 1994. http://www.nissanpathfinders.net/forum/index.php?showtopic=32936 my bad its IAC regulator in the pic Link to comment Share on other sites More sharing options...
NissanNismoZ Posted April 20, 2012 Author Share Posted April 20, 2012 Actually, smacking it with the handle of a screwdriver did it! Is there a way to clean these? or just do the seafoam treatment again...? Link to comment Share on other sites More sharing options...
ejin4499 Posted April 21, 2012 Share Posted April 21, 2012 Actually, smacking it with the handle of a screwdriver did it! Is there a way to clean these? or just do the seafoam treatment again...? I love it when I'm right Seafoam doesn't get into those and I think that the issue isn't so much that they get dirty as they get old and corroded inside. I don't know if you can clean it, but you might try and see what you get. I've taken one apart, but I was never able to get it to work properly after reassembly. Good luck let us know if you get it cleaned out. Link to comment Share on other sites More sharing options...
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