Notts_TT Posted June 8, 2011 Share Posted June 8, 2011 Hello Everyone, I have not been on here for a while. I hav just dragged supra out of garage after last seasons shows ready to rebuild for next year. I have purchaced a trial rear,the first out of the mould from Knight Racer. Anyhow, i had a flat battery and jumped the supra and it wouldnt idle??? It would rev nice and sounded as good as ever but just died when it was not revved? Could this be a battery or alternator fault ?? Please help, oh and hello again [GRIN][/GRIN] Dan Quote Link to comment Share on other sites More sharing options...
marc_p Posted June 8, 2011 Share Posted June 8, 2011 Probably your Idle Control Valve, do a search on here as Geo did a good DIY guide on how to clean it out. Quote Link to comment Share on other sites More sharing options...
Notts_TT Posted June 8, 2011 Author Share Posted June 8, 2011 Guessing this could stop it from idling all together then ??? It doesnt even try to idle. Thanks guys Dan Quote Link to comment Share on other sites More sharing options...
marc_p Posted June 8, 2011 Share Posted June 8, 2011 Guessing this could stop it from idling all together then ??? It doesnt even try to idle. Thanks guys Dan Yup, if it's gammy, it can stick so will just cause the car to idle really high, really rough, not idle at all or idle really low. Quote Link to comment Share on other sites More sharing options...
Marty Posted June 8, 2011 Share Posted June 8, 2011 Could also be because the ecu hasn't had juice on it for a while, will need a few mins to re learn. Jump it again, and keep your foot on the throttle a bit to stop it dying, it should sort itself out within a minute or two if it is the ecu. Quote Link to comment Share on other sites More sharing options...
Notts_TT Posted June 8, 2011 Author Share Posted June 8, 2011 I tried keeping it running for a few minutes but it kept on dying, i will try and clean ICV and will let u know. Thanks Dan Quote Link to comment Share on other sites More sharing options...
Nic Posted June 8, 2011 Share Posted June 8, 2011 Could also be because the ecu hasn't had juice on it for a while, will need a few mins to re learn. Jump it again, and keep your foot on the throttle a bit to stop it dying, it should sort itself out within a minute or two if it is the ecu. If the battery has run flat the ECU will have been reset this will cause the engine to run a bit lumpy and not idle properly, a run out for a for minutes should sort things out. Quote Link to comment Share on other sites More sharing options...
Notts_TT Posted June 8, 2011 Author Share Posted June 8, 2011 It doesnt run lumpy, it wont idle at all, doesnt even try to idle... Dan Quote Link to comment Share on other sites More sharing options...
SPG Posted June 9, 2011 Share Posted June 9, 2011 ta da http://www.mkivsupra.net/vbb/showthread.php?210956-How-To-Clean-Idle-Control-Valve-Cleaning-Aka-ICV-(IAC)&highlight=idle Quote Link to comment Share on other sites More sharing options...
Notractionin4th Posted June 9, 2011 Share Posted June 9, 2011 I had a situation a couple of months ago where one of my battery clamps was not holding tight and would just creep off slightly whilst I was driving along going over bumps in the road, causing some of the dash lights to flicker and my alarm to suddenly go off! Happened a few times before I actually twigged where the problem lied (was looking far deeper for a problem which turned out to be right under my nose?!) and every time i re-started the car again it didn't want to start very well let alone idle. But once it would start i just carried on driving it back home, nice and steady, and by the time i was home it was fine again...... the ECU had re-taught itself again i guess? Replaced the battery clamps for new ones and i've never had an idling problem since Quote Link to comment Share on other sites More sharing options...
supralu Posted June 9, 2011 Share Posted June 9, 2011 I cleaned my ICV a couple months back and when putting back on the car I forgot to reconnect the electrical connected back to the control valve. When I started it back up the revs would go high and low, it was all over the place. So I guess make sure it's all connected up and not come loose. Good luck Quote Link to comment Share on other sites More sharing options...
Notts_TT Posted June 9, 2011 Author Share Posted June 9, 2011 Thanks guys, I will try all suggestions Monday or Tuesday... Quote Link to comment Share on other sites More sharing options...
mellonman Posted June 10, 2011 Share Posted June 10, 2011 could also be petrol if its been sitting for ages,not sure how long you mean by dragged it out the garrage? stick some new vpower in Quote Link to comment Share on other sites More sharing options...
bigjools Posted June 10, 2011 Share Posted June 10, 2011 (edited) hi i had the same prob after giving a jump it would not idle at all but after a good 10 min run she was back to life i dont think thay like low batterys if you see me in notts giss a hoot cheers Edited June 10, 2011 by bigjools (see edit history) Quote Link to comment Share on other sites More sharing options...
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