se4njb7 Posted April 18, 2013 Posted April 18, 2013 Right this is a weird situation. Well on a cold start it idles around 1750rpm then once it gets up to normal operating temperature it idles at 1k. If I drive sensibly the car will idle at 1k once I come to rest. If I decide to boot it then drive sensibly for say a minute and come to rest the car will either idle around 1.5k or occasionally will surge, but if I turn the engine off and back on it will idle at 1k. I have checked all vacuum hoses using the good old wd40 trick and they seem fine. Even clamped hoses individually to check if it changes the idle and nothing. Has anyone had this problem before? Cheers. Quote
Dan Barnes Posted April 18, 2013 Posted April 18, 2013 (edited) Mines doing this also! Any chance of a pic of wat needs checking / cleaning ? Edited April 18, 2013 by DanDanBarnski Quote
AdamB Posted April 18, 2013 Posted April 18, 2013 (edited) Haven't got a pic to hand, but as you look in the engine bay. Left hand side of the inlet manifold, theres a white circular component, held on by 2 bolts. One at the front and one from behind. Also has a vacuum hose on the bottom. I'm sure theres a guide on how to clean them out, bare with me I'll see if I can find it Edit: Here guys :http://www.toyotagtturbo.com/forums/showwiki.php?title=Idle+Control+Valve+Removal+and+Cleaning Edited April 18, 2013 by AdamB Quote
se4njb7 Posted April 18, 2013 Author Posted April 18, 2013 I might just swap it cause I've got another one lying around. Will try it tomorrow if I've not found the problem out. And cheers for the advice mate! Quote
se4njb7 Posted April 18, 2013 Author Posted April 18, 2013 Definitely going to try change the valve and I'll clean the other one. If it's not that then I don't know what it could be. I have another full inlet manifold sitting around aswell, may have to try that if the valve doesn't do anything. Quote
se4njb7 Posted April 19, 2013 Author Posted April 19, 2013 Well changed the icv and opened up the one that was already on the car and it seems like one if the wee vane things was already burst away from the rest. Take it that would have caused the wacky idling? Quote
se4njb7 Posted April 19, 2013 Author Posted April 19, 2013 Don't think it's really changed much. Still when I boot it it will idle around 1.5k then kind of settles at around 1.25k no idea what the deal is? Quote
AdamB Posted April 19, 2013 Posted April 19, 2013 Have you tried adjusting the idle screw on the intake manifold after swapping the ICV? Failing that check the wax stat is working properly on the throttle body Quote
se4njb7 Posted April 19, 2013 Author Posted April 19, 2013 It only idles like that though if I go into higher boost. It idles normally when I don't go daft. Quote
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