top revs break up 95 sti
#1
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top revs break up 95 sti
hi all,
i have a 95 sti and its developed a splutter at top revs, i have checked the:-
coils
changed the spark plugs
cam sensor
crank sensor
checked for ecu code (all clear)
reset the ecu
what else could it be?
i have a front mount i/c
apexi induction
full stainless
all these have been on the car since i got it 3 years ago but its now got this problem, any help would be nice, thanks.
i have a 95 sti and its developed a splutter at top revs, i have checked the:-
coils
changed the spark plugs
cam sensor
crank sensor
checked for ecu code (all clear)
reset the ecu
what else could it be?
i have a front mount i/c
apexi induction
full stainless
all these have been on the car since i got it 3 years ago but its now got this problem, any help would be nice, thanks.
Last edited by thewhitewarrior; 30 August 2010 at 06:04 PM.
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around 5k on flooring it.
ive just cleaned out the boost solenoid and it seems a bit better but still there slightley, can i clean the map sensor with brake fluid too?
ive just cleaned out the boost solenoid and it seems a bit better but still there slightley, can i clean the map sensor with brake fluid too?
#5
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Brake/clutch cleaner isn't it? Carb cleaner would do too I think. Prob all good stuff, much of a muchness.
Wouldn't use brake fluid - it'll be sticky and wont evaporate. The other fluids mentioned run the dirt off and also evaporate away...
Wouldn't use brake fluid - it'll be sticky and wont evaporate. The other fluids mentioned run the dirt off and also evaporate away...
Last edited by joz8968; 28 August 2010 at 09:23 PM.
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#10
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You cant swap one about as it is often more than one at fault
Replace then and you will notice the car much smoother and hopefully this issue resolved
Replace then and you will notice the car much smoother and hopefully this issue resolved
#13
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Fair enough. Sound logic.
Indeed, I experienced this myself on my previous WRX. Car failed MOT on CO2 emmisions. Lambda needed replacing, but still failed. Then 2 badly worn coilpacks were replaced (the knackered ones were causing inaudible low rev misfires causing rich mixture), and it passed. Then the other 2 (not so bad, but still same age, as you say) were replaced soon after...
Indeed, I experienced this myself on my previous WRX. Car failed MOT on CO2 emmisions. Lambda needed replacing, but still failed. Then 2 badly worn coilpacks were replaced (the knackered ones were causing inaudible low rev misfires causing rich mixture), and it passed. Then the other 2 (not so bad, but still same age, as you say) were replaced soon after...
Last edited by joz8968; 30 August 2010 at 10:51 AM.
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hi again, thanks for all the advise, i did check the coils but as you said there could be real small cracks, ill change them for another set off my impreza based rs200, i know they are all good so will solve weather its the coils or not, thanks again, ill let you know.
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well well well, after i checked the pesky coils it turns out it was them after all, there must be something wrong with one that cant be seen by the human eye, its a different car now, a massive thankyou very much for suggesting i look and changed them,
how can you check the coils when there doesnt seem to be anything wrong?
how can you check the coils when there doesnt seem to be anything wrong?
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oh yes perfectly, i am more than pleased with it, thanks very much for everything, im sure ill be needing your expertees again, all the best, phil.
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