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severe stuttering above 3000 rpm

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Old 08-04-05, 05:25 AM
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severe stuttering above 3000 rpm

so i let the revs drop, tread back in then it'll rev up fine. Dont know what exact revs, but is it possible ive disconnected a vaccum pipe that'll cause this problem? or is it likely to be fuel starvation (it happens whilst flooring it). Its a 13b engine...

Also it bangs loudly on overun; the timing looks good. It has no cat and a short exhaust (about half the length of standard) with a bike exhaust can on it. Is it likely to be a hole in the exhaust?

Cheers


steve
Old 08-04-05, 05:57 AM
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I am experiencing a similar problem right now... My car has been driving fine ever since the PD fire and removal; however, yesterday it starts stuttering above 2500rpm in different spots--only when car is fully warm? Does anyone know what could be the cause? I think it is a ground, but are there any more things i should check out as well...
Old 08-04-05, 06:19 AM
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Could be vacuum leaks, faulty sensors (water thermo/TPS/etc), bad plugs, lack of proper fuel pressure (either due to a plugged filter, poor voltage at the pump, etc). Could be a lot of things!
Old 08-04-05, 06:20 AM
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Damn... does the fact that it only stutters when the car is fully warm take anything off the list?
Old 08-04-05, 06:30 AM
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It'd lean me towards water thermosensor, but still it's hard to tell, heat can affect a lot of things differently.
Old 08-04-05, 11:47 AM
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Ok... will check it first... thanks
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