martin1982 Posted February 9, 2009 Share Posted February 9, 2009 OK so recently whenever I start the car up for the first time the revs are at about 400rpm on idle. The car comes scarily close to cutting out completely whenever I have to pull up to give way etc.. Any ideas on the cause? Cars been BPU for a few months now with no problems... Link to comment Share on other sites More sharing options...
Ric Posted February 9, 2009 Share Posted February 9, 2009 i had this when i fitted a Faulty FCD, reterminate the connectors or check them at least Link to comment Share on other sites More sharing options...
supra_surj Posted February 9, 2009 Share Posted February 9, 2009 Fcd settings may need adjustment as I had this on mine. Also cleaned the idle control valve. Link to comment Share on other sites More sharing options...
martin1982 Posted February 9, 2009 Author Share Posted February 9, 2009 OK I've got the HKS FCD and its set to 9, which seems to be the agreed setting... Link to comment Share on other sites More sharing options...
Guigsy Posted February 9, 2009 Share Posted February 9, 2009 i have the same fault. took it into the garrage and they checked it out. turned out i had a leak in something at the back of the engine bay (split pipe) replaced it and it all went away but now its come back I have a thor FCD, if i knew where it was or what it looked like i would have a look myself lol Link to comment Share on other sites More sharing options...
Duffman Posted February 9, 2009 Share Posted February 9, 2009 i also have this problem since trying to fit greddy BCC...its fitted now but still have same problem...its set to just under 4.3v which is correct I believe Link to comment Share on other sites More sharing options...
chp03bcd Posted February 9, 2009 Share Posted February 9, 2009 I have had a similar problem with a low idle on start up on my stock auto. It was caused by a loose connection to the battery, once that was tightened there were no further issues Link to comment Share on other sites More sharing options...
martin1982 Posted February 9, 2009 Author Share Posted February 9, 2009 It seems to get better once I've been running the car for about 5-10 minutes... Least I know I'm not alone here tho! Be interesting to know how many people are suffering with this and if there is a simple solution to it all! Was toying with upgrading the FCD to the GReddy BCC, but it seems that changing the FCD may not be the way to go... Link to comment Share on other sites More sharing options...
Duffman Posted February 9, 2009 Share Posted February 9, 2009 It seems to get better once I've been running the car for about 5-10 minutes... Least I know I'm not alone here tho! Be interesting to know how many people are suffering with this and if there is a simple solution to it all! Was toying with upgrading the FCD to the GReddy BCC, but it seems that changing the FCD may not be the way to go... yeah my idle is much better once its heated up a bit...it revs higher then normal when heated up though (about 1000-1100rpm rpm)...before was around 600-800rpm im confused as to what the problem may be where is the idle control valve? Link to comment Share on other sites More sharing options...
martin1982 Posted February 9, 2009 Author Share Posted February 9, 2009 This might be of use! http://www.mkivsupra.net/vbb/showthread.php?t=145249&highlight=iac Link to comment Share on other sites More sharing options...
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