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May 6th, 2009, 06:50 PM
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#1 |
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Regular
Join Date: Aug 2008
Posts: 238
 iTrader: 0 reviews
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slight miss or bad sensor?
ok so my car kinda idles rough while sittin at red lights and stuff... and today the rpms would jump about 500 and come back down.. did it for like 20 secs till i tapped the gas... then it stopped... any ideas?
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May 6th, 2009, 07:03 PM
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#2 |
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Banned
Join Date: May 2008
Posts: 7,970
 iTrader: 4 reviews
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Everyones gonna say clean the iac, but yea -- thats where id start clean the iac and maf and see if thatll help it any then go from there such as checking the plugs coils etc.
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May 6th, 2009, 07:05 PM
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#3 |
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Regular
Join Date: Aug 2008
Posts: 238
iTrader: 0 reviews
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well i had the maf off no more than a month ago maybe... cleaned it then when i had it off.. and i had the iac off like maybe 6 months ago and cleaned it while it was off too... so i dont think its them... i had a blow by problems bout 6 months ago thats why i took off the iac thought it was that... but had oil on the plugs instead so replaced the plugs then.. but i believe these are the original coil packs in the car still
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May 6th, 2009, 07:07 PM
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#4 |
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Banned
Join Date: May 2008
Posts: 7,970
iTrader: 4 reviews
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Hmm..thanks for wasting my time. If you could have ruled all that out yourself w/o asking then why not try that in the first place. Check the coils with a dvom then and inspect the boots.
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May 6th, 2009, 07:15 PM
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#5 |
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Regular
Join Date: Aug 2008
Posts: 238
iTrader: 0 reviews
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heh sorry didnt mean to waste your time... yeah i was talkin to my brother and he said if it was the coils it would prolly do it all the time...
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May 9th, 2009, 05:07 PM
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#6 |
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Hardcore Enthusiast
4.6L Coupe' 5spd
***************
Join Date: Apr 2009
Location: S. California
Posts: 2,185
iTrader: 0 reviews
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TPS then......
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May 11th, 2009, 12:49 PM
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#7 |
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MM Fanatic
KB'd GT
Join Date: Nov 2006
Location: San Diego
Posts: 4,471
iTrader: 3 reviews
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Is it setting a code? A miss will typically trigger a MIL in about 15 min of driving or less. Also the IACs go bad sometimes and cleaning them will only buy a bit of time before they act up again.
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