Dave222 Posted April 11, 2007 Share Posted April 11, 2007 Ever since I fitted my High Stall (3800) I seem to have developed a slight cough / misfire when setting off quickly from a standstill. Definitely didn't happen pre high stall. Once moving the car never misses a beat. Any ideas welcome. Cheers Dave Quote Link to comment Share on other sites More sharing options...
Darren Posted April 11, 2007 Share Posted April 11, 2007 Ever since I fitted my High Stall (3800) I seem to have developed a slight cough / misfire when setting off quickly from a standstill. Definitely didn't happen pre high stall. Once moving the car never misses a beat. Any ideas welcome. Cheers Dave A high stall should not give you a missfire maybe its just time for new plugs? What boost are you running etc..... Quote Link to comment Share on other sites More sharing options...
Dave222 Posted April 12, 2007 Author Share Posted April 12, 2007 I agree I can't think why it should do it but it does and the only thing thats changed is the torque convertor. I fitted new plugs about 2000 miles ago because there was a definite misfire at high revs under full boost (1.2bar) this is a different problem. Quote Link to comment Share on other sites More sharing options...
Terminator Posted April 12, 2007 Share Posted April 12, 2007 Coil pack failing can cause miss under boost. Best way to check is substution of a known good coil. Resistance cold (-10 - 50 degrees C) for a coil is 0.54-0.84 ohms and0.68- 0.98 ohms hot (50 - 100degrees C) Quote Link to comment Share on other sites More sharing options...
Dave222 Posted April 12, 2007 Author Share Posted April 12, 2007 Thanks for that I will check them at the weekend but this does not happen under full boost conditions its only attempting to accelerate hard from a standstill either normally or during power braking ?? Cheers Dave Quote Link to comment Share on other sites More sharing options...
Robert Posted April 12, 2007 Share Posted April 12, 2007 You sure its a misfire? Quote Link to comment Share on other sites More sharing options...
Dave222 Posted April 12, 2007 Author Share Posted April 12, 2007 Well no actually its more like a "cough" any thoughts ?? Quote Link to comment Share on other sites More sharing options...
Robert Posted April 12, 2007 Share Posted April 12, 2007 well its probably TC related, as you have said it only happens from a stand still and only since you fitted the TC. Can you not fit the stock TC back on and see if you still have the problem? then you can say its defo the TC and get it looked at. I know when the stock TC is on its way out it sort of "judders" not sure if thats what you are getting. Quote Link to comment Share on other sites More sharing options...
Darren Posted April 12, 2007 Share Posted April 12, 2007 Thanks for that I will check them at the weekend but this does not happen under full boost conditions its only attempting to accelerate hard from a standstill either normally or during power braking ?? Cheers Dave Dont forget that the 3800 stall is allowing/making the car to launch with a high boost thats the whole point.... Quote Link to comment Share on other sites More sharing options...
letmeshowyou Posted April 12, 2007 Share Posted April 12, 2007 have you tried an ecu reset? Quote Link to comment Share on other sites More sharing options...
Dave222 Posted April 13, 2007 Author Share Posted April 13, 2007 Thanks for the suggestions, I will try them tomorrow, do you know what, if any, the problems would be with removing the TC fuse on the jap auto?? Quote Link to comment Share on other sites More sharing options...
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