Guest SilverSup Posted January 26, 2012 Share Posted January 26, 2012 Hi guys. Could anyone tell me a possible cure/cause of fault for a high idle speed on an N/A when it's cold. Mine seems to idle around 2k rpm when cold started, but slowly settles down after 10 mins or so. I've seen others run around 1200-1500 rpm cold start and wondered if mine has any major problems? Engine is stock aside from a kakimoto cat-back exhaust. Thanks fellas Quote Link to comment Share on other sites More sharing options...
Graham1984 Posted January 26, 2012 Share Posted January 26, 2012 Mine idles at about 1600-1800 rpm when I start it cold to and like you said it goes down after a couple of mins but if you drive it when like this it feels like you are being dragged along. I thought it idled high so the oil temp gets up quicker although I am probably wrong. I found when the ecu was reset and left to run on its own for a few minutes without touching the throttle and then driven for a few miles carefully the next time I cold started my car it seamed a lot better. I hope you do get a answer because I will have a play about with mine if it turns out it is wrong. Quote Link to comment Share on other sites More sharing options...
Graham1984 Posted January 26, 2012 Share Posted January 26, 2012 (edited) http://www.mkivsupra.net/vbb/archive/index.php/t-100745.html http://www.mkivsupra.net/vbb/archive/index.php/t-49536.html http://www.mkivsupra.net/vbb/showthread.php?165420-Which-one-is-the-ICV&highlight=n%2Fa+icv http://www.mkivsupra.net/vbb/showthread.php?210956-How-To-Clean-Idle-Control-Valve-Cleaning-Aka-ICV-(IAC) http://www.mkivsupra.net/vbb/archive/index.php/t-82371.html Found these links which may help you out and reassure you (and me) although as I said before maybe we are all wrong. Edited January 26, 2012 by Graham1984 (see edit history) Quote Link to comment Share on other sites More sharing options...
Guest SilverSup Posted January 26, 2012 Share Posted January 26, 2012 http://www.mkivsupra.net/vbb/archive/index.php/t-100745.html http://www.mkivsupra.net/vbb/archive/index.php/t-49536.html http://www.mkivsupra.net/vbb/showthread.php?165420-Which-one-is-the-ICV&highlight=n%2Fa+icv http://www.mkivsupra.net/vbb/showthread.php?210956-How-To-Clean-Idle-Control-Valve-Cleaning-Aka-ICV-(IAC) http://www.mkivsupra.net/vbb/archive/index.php/t-82371.html Found these links which may help you out and reassure you (and me) although as I said before maybe we are all wrong. Well, that settles my mind a little. Although I should probably give the ICV a clean out... Quote Link to comment Share on other sites More sharing options...
Graham1984 Posted January 26, 2012 Share Posted January 26, 2012 I was thinking that too Now just to look at the mpg thread,think about cleaning my 02's, consider distance driven to fuel used and cry myself to sleep! Quote Link to comment Share on other sites More sharing options...
viper Posted January 26, 2012 Share Posted January 26, 2012 mine does this too Quote Link to comment Share on other sites More sharing options...
Graham1984 Posted January 26, 2012 Share Posted January 26, 2012 Surely someone more intelligent will come along with an answer to our problems at some point Quote Link to comment Share on other sites More sharing options...
David P Posted January 26, 2012 Share Posted January 26, 2012 (edited) As long as it settles down to around 700-750rpm when warm, all is well. But after cleaning the ICV and confirming there are no vacuum leaks from hoses or gaskets, if you can't get the revs down to this number you may find the throttle body is worn and leaking in air. Try swapping on a t.b. with less miles on it. Edited January 26, 2012 by David P (see edit history) Quote Link to comment Share on other sites More sharing options...
Graham1984 Posted January 26, 2012 Share Posted January 26, 2012 Mine settles down ok so that is good news although I could probably do with cleaning the ICV anyway just to help the car out a bit. Quote Link to comment Share on other sites More sharing options...
Abz Posted January 26, 2012 Share Posted January 26, 2012 Mine is at 2K as well on cold start, it's perfectly normal. I believe this is called fast idle so then the engine/oil & cat temps can get to operating temperature quicker. I have a very low mileage engine & it does the same so I wouldn't worry. It's only if it is stuck on 2,000 RPM or cold starts on 4K then you should be worried. Quote Link to comment Share on other sites More sharing options...
Guest SilverSup Posted January 26, 2012 Share Posted January 26, 2012 ok cool. Yes, mine settles down to around 700 ish when warm. I just had a bad feeling that i'd gone and bought a lemon after only a few weeks of ownership. Thanks for the help fellas Quote Link to comment Share on other sites More sharing options...
Graham1984 Posted January 26, 2012 Share Posted January 26, 2012 (edited) Mines only done 50k as well, At least it looks like I was part right then about the oil temp then and not just talking out of my rectum as per usual. Morning Abz Edited January 26, 2012 by Graham1984 Chance to knock Abz arises (see edit history) Quote Link to comment Share on other sites More sharing options...
Littler Posted January 26, 2012 Share Posted January 26, 2012 Mines only done 50k as well, At least it looks like I was part right then about the oil temp then and not just talking out of my rectum as per usual. Morning Abz Abz offers some advice I then you post the famous video, that's just funny! Quote Link to comment Share on other sites More sharing options...
Graham1984 Posted January 26, 2012 Share Posted January 26, 2012 In my defence we were almost there with a decision about what may or may not be wrong, Plus you can tell how credible someone is by other little gems like that video. On that basis and Abz advice weighted against my high idle and Abz drag career I have decided to sell my car just to be on the safe side Quote Link to comment Share on other sites More sharing options...
Littler Posted January 26, 2012 Share Posted January 26, 2012 In my defence we were almost there with a decision about what may or may not be wrong, Plus you can tell how credible someone is by other little gems like that video. On that basis and Abz advice weighted against my high idle and Abz drag career I have decided to sell my car just to be on the safe side Lol I'll like that logic Quote Link to comment Share on other sites More sharing options...
Abz Posted January 26, 2012 Share Posted January 26, 2012 Mines only done 50k as well, At least it looks like I was part right then about the oil temp then and not just talking out of my rectum as per usual. Morning Abz I can not wait to meet you! Quote Link to comment Share on other sites More sharing options...
Graham1984 Posted January 26, 2012 Share Posted January 26, 2012 (edited) I was wondering who would win a drag race between this group, Add your own suggestions too. 1) Abz 2) Kayla 3) Stephen Hawkins (Favourite) 4) Penelope Pitstop http://t1.gstatic.com/images?q=tbn:ANd9GcQ5djmVpHfq2fOXB5RpOcWQ7XfJYPXbXn3IU5xl9D-Hzlp2vLWV 5) Mr Magoo 6) Dick Dastardly http://media.giantbomb.com/uploads/2/23286/1079647-meanmachineani_thumb.gif 7) Lewis Hamilton 8) Bear and glacier 9) My NA aerotop 10) Andy 11) Neil NA 12) Fred Flintstone Edited January 26, 2012 by Graham1984 Forgot neil (see edit history) Quote Link to comment Share on other sites More sharing options...
Neil-NA Posted January 26, 2012 Share Posted January 26, 2012 I was wondering who would win a drag race between this group, Add your own suggestions too. 1) Abz http://i271.photobucket.com/albums/jj152/DodgyRogSupra/Pic321.jpg 2) Kayla http://www.mkivsupra.net/vbb/customavatars/avatar13554_8.gif 3) Stephen Hawkins (Favourite) http://www.google.co.uk/url?source=imglanding&ct=img&q=http://theness.com/neurologicablog/wp-content/uploads/2012/01/Hawking.jpg&sa=X&ei=qE4hT56JBJimsgaL5MDKBw&ved=0CA8Q8wc&usg=AFQjCNEG5bBy5T1jXSikqAB-z3uxLQtRLg 4) Penelope Pitstop http://t1.gstatic.com/images?q=tbn:ANd9GcQ5djmVpHfq2fOXB5RpOcWQ7XfJYPXbXn3IU5xl9D-Hzlp2vLWV 5) Mr Magoo http://t1.gstatic.com/images?q=tbn:ANd9GcQ8Aqd-bBKXN9Z5JJiVgq_6v0577T1evfDxxRgHvIT1637PIe28 6) Dick Dastardly http://media.giantbomb.com/uploads/2/23286/1079647-meanmachineani_thumb.gif 7) Lewis Hamilton http://thumbsnap.com/s/YZhg1pCN.jpg 8) Bear and glacier http://t0.gstatic.com/images?q=tbn:ANd9GcT_0VpiZhCYqJzH8KYqrzDzUBKbcOuFg5zscAdhp0MJd-VIFs6Ebw 9) My NA aerotop http://upload.wikimedia.org/wikipedia/commons/thumb/9/97/Skip_containing_rubbish_16s06.jpg/220px-Skip_containing_rubbish_16s06.jpg 10) Andy http://t0.gstatic.com/images?q=tbn:ANd9GcRDnhquLtSlgQ5HR4vzyrPn923E_mukTyiddCZHzRxH1fB-p_Lt 11) Neil NA http://i255.photobucket.com/albums/hh137/neilbmxpert/20120126_122344.jpg 12) Fred Flintstone http://t2.gstatic.com/images?q=tbn:ANd9GcRyDbI4We3ScGz3O-g_rlab4AYMaCaqS_IOekZwGlWlUNDdzTb5rw Graham you crack me up Sometimes. Quote Link to comment Share on other sites More sharing options...
Graham1984 Posted January 26, 2012 Share Posted January 26, 2012 (edited) On the plus side your car has a good chance still I was trying to find the one of hamilton driving the kids red toy car but after 36pages on pheads I got bored. That drag line up almost deserves it's own thread but I have upset enough people on here already I imagine. Edited January 26, 2012 by Graham1984 (see edit history) Quote Link to comment Share on other sites More sharing options...
Ian C Posted January 26, 2012 Share Posted January 26, 2012 Thread duly torpedo'd out of tech and into chat... Quote Link to comment Share on other sites More sharing options...
Graham1984 Posted January 26, 2012 Share Posted January 26, 2012 (edited) My fault sorry. On the plus side the OP question was answered. Edited January 26, 2012 by Graham1984 (see edit history) Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted January 26, 2012 Share Posted January 26, 2012 N/A idle speed is now a bit of a nightmare. Basically if it idles too fast it's getting too much air. or the throttle position sensor is giving incorrect feedback to the ECU. An air leak could be external air traceable with a propane jet lance, or the idle speed control valve is malfunctioning or getting duff control signals from the ecu. The throttle body itself is prone to wear. It's ESSENTIAL that only the matching part number throttle position sensor is used if that's faulty, and it need setting up to perfection. Finally the engine needs to be sending correct water temp signals to the ecu that change in correct relationship with the actual engine water temp, The problem is most N/A throttle bodies are now warn and a new TB is about the price of another N/A car... If you mess with the paint sealed throttle plate stop screws the TB is pretty much bin material unless you are VERY lucky. Quote Link to comment Share on other sites More sharing options...
Graham1984 Posted January 26, 2012 Share Posted January 26, 2012 Is that an advanced way of saying don't touch/mess about with it Chris?? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted January 26, 2012 Share Posted January 26, 2012 Not at all, if people didn't mess about with things I would be a lot poorer. Twiddle away Quote Link to comment Share on other sites More sharing options...
Graham1984 Posted January 26, 2012 Share Posted January 26, 2012 I will pm you when I have cocked it up. Quote Link to comment Share on other sites More sharing options...
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