D8MOA Posted June 6, 2007 Share Posted June 6, 2007 i no can of worms/are we covering this again/RTFM/ search botton!! yes its all been done!! i have a missfire bit of a strange one so i will explain... when the car was on the road i had boost missfire problems but ime guna decribe it the best i can.. when its warm and at idle if i rev it slowley it will rev fine all the way up to redline BUT if i boot it quick it will go up to about 1k off redline and start missing/spluttering... the car has new coilpacks/plugs and coil connectors so ime ruling them out... could it be a vsv/accuator problem? also what would happen if the 2nd turbo impeller had broken off? Link to comment Share on other sites More sharing options...
Homer Posted June 6, 2007 Share Posted June 6, 2007 What plugs do you have? What is the gap? What boost level? Link to comment Share on other sites More sharing options...
D8MOA Posted June 6, 2007 Author Share Posted June 6, 2007 i had the problem eairler with crap plugs and have put ik24's in trying to fix the problem but its still there. standerd gaping, and standerd boost.... both cats in still and boost never been played with Link to comment Share on other sites More sharing options...
Branners Posted June 6, 2007 Share Posted June 6, 2007 is it UK spec or j-spec? UK Spec cars will do that if you have popped an IC hose off. JB Link to comment Share on other sites More sharing options...
D8MOA Posted June 6, 2007 Author Share Posted June 6, 2007 its a j spec auto.all the ic hoses are fine as ive just refitted them Link to comment Share on other sites More sharing options...
hadyn Posted June 6, 2007 Share Posted June 6, 2007 fuel pump? Link to comment Share on other sites More sharing options...
mikeyb10supra Posted June 7, 2007 Share Posted June 7, 2007 its a j spec auto.all the ic hoses are fine as ive just refitted them did you refit and then it started happening, or were they refit after the missfire?? fuel pump? possibly, low pressure would cause a lean missfire....certainly something you dont want to be seeing, I would also check your pump while your about it Link to comment Share on other sites More sharing options...
D8MOA Posted June 7, 2007 Author Share Posted June 7, 2007 thay were removed and refitted and the missfire still there, ime going to put a filter on it 2 nite and see what happens and a pump if i can get hold of one Link to comment Share on other sites More sharing options...
RobSheffield Posted June 7, 2007 Share Posted June 7, 2007 Walbros are cheap enough, and proof against future mods Link to comment Share on other sites More sharing options...
D8MOA Posted June 7, 2007 Author Share Posted June 7, 2007 cars goin up forsale so just want it running right to sell Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 7, 2007 Share Posted June 7, 2007 Check for TPS codes and do a resistance test yourself, at the ECU end. Link to comment Share on other sites More sharing options...
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