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29-12-2005, 04:59 PM
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Starter Motor
Join Date: Dec 2005
Posts: 4
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Hi Guys
Im new to this forum. Ive got a au series1 fairmont and car seems to idle very rough. If i rev the car to about 5000 rpm it back fires. Ive cleaned the throttle body, replaced leads, plugs, changed the oil filter, reset the ecu. Am i missing something coz its really starting to annoy me. Ive got a pod and a 2 1/2 cat back exhaust and i can clearly hear the car idle at the lights and shake as it misses Help !!!! |
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17-01-2006, 05:11 PM
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Guest
Posts: n/a
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air filter?
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17-01-2006, 05:59 PM
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Miami Pilot
 
Join Date: Jan 2005
Location: ACT
Posts: 21,704
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could be blocked fuel filter too.
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17-01-2006, 06:02 PM
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Join Date: Mar 2005
Posts: 5,954
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i had similar problems before my coil pack thing decided to die..
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17-01-2006, 06:19 PM
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Smile
Join Date: Dec 2004
Location: Merrylands Sydney
Posts: 8,541
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Take out your spark plugs one by one and keep them in order.Check the colour of each.Chances are that if one is clearly different then investigate that cylinder for injectors/orings ,inlet manifold gasket leaks etc.Also dont forget spark..
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17-01-2006, 06:26 PM
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Moderator
  
Join Date: Feb 2005
Location: Kenthurst
Posts: 40,403
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Backfiring at 5000 sounds pretty harsh though.
get spark looked at first ... could be a vacuum leak on the intake side too. Maybe oxygen sensor .. but that shouldn't cause a backfire though. Maybe needs a tune (although I don't think the AU would get THAT far out of tune though.
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17-01-2006, 06:28 PM
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#7 | ||
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Right out sideways
Join Date: Dec 2004
Location: Coffs Harbour NSW
Posts: 5,307
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sparkys leads or fuel filter would be my first points of attack
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2010 FG XR50 Turbo | 2007 FPV BFII GT, BOSS 302 |
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Au idling rough
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