rongkeyz Posted March 4, 2011 Share Posted March 4, 2011 Hello I hope this the right section for this post.The engine is a 4e-fte.The problem, Car starts and idles at 2k without going near the accelerator the engine starts to warm up and the 'hunts' dropping to 1.8k revs and back to 2k revs.I have searched and found a hand full of topics for high idle and not much luck on finding one with similar enough symptoms as mine.The things I have tryed.Changed the distributor and cap with arm, new plugs leads and king lead.Changed the two wire coolant sensor for new.Changed the vacuum pipe and MAP sensor.Adjusted the throttle cable and stop.Cleaned the throttle body housing and Barometric spring, replaced the O ring seal on the idle screw, used home made new gaskets, leak checked with brake cleaner spray.Disconnected the IACV, Checked operation with a power probe.Changed the valve on the rocker box and tried running with it unplugged.Removed the thermostat, checked for air locks.I have ordered up a head set and I am thinking of replacing the inlet manifold gasket/ to head and the injector rail with new seals.If anyone has some info on this problem please reply. Quote Link to post Share on other sites
nazzurro19 Posted March 4, 2011 Share Posted March 4, 2011 have u tried adjusting the idle screw ? lol Quote Link to post Share on other sites
ep91steve Posted March 4, 2011 Share Posted March 4, 2011 A have a spare icv might need new one Quote Link to post Share on other sites
Gtstu Posted March 4, 2011 Share Posted March 4, 2011 i have the exact same problem on my friends gt I've tried everything ice new inlet new tb checked all pipes new head gasket its dring me crazy Quote Link to post Share on other sites
mini valver Posted March 4, 2011 Share Posted March 4, 2011 mine has done this and wat caused it to rev up and down was the throttle position sensor. and if not that and you have not altered any thing .one of your vacumes has came off some were or they are split and drawing in airor failing that possible inlet gasket leak Quote Link to post Share on other sites
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