Forced Induction Custom FI Setup Questions

won't stop running rich

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Old Oct 11, 2008 | 06:24 PM
  #2  
-SKUM-'s Avatar
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From: Mother Fucking Washingtion
Default Re: won't stop running rich

Bad O2 sensor?
Old Oct 11, 2008 | 06:31 PM
  #3  
Skaterdudz02's Avatar
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Default Re: won't stop running rich

I'd say with an 02 sensor or bad coolant temperature sensor?
Old Oct 11, 2008 | 06:32 PM
  #4  
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From: Mother Fucking Washingtion
Default Re: won't stop running rich

Originally Posted by Skaterdudz02
bad coolant temperature sensor?

But I think that you could still lean it out if it had a bad coolent temp sensor.
Old Oct 11, 2008 | 07:24 PM
  #6  
turbocivic6776's Avatar
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Default Re: won't stop running rich

even with a bad temp. sensor i would think you would still be able to get better ratios then 8's
Old Oct 11, 2008 | 08:09 PM
  #7  
CspecRun's Avatar
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Default Re: won't stop running rich

Just a thought....Whenever the 02 sensor for my wideband goes out, it always starts pegging out to the rich side....
Old Oct 12, 2008 | 03:00 AM
  #8  
omniscient's Avatar
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Default Re: won't stop running rich

Yeah it seems like Bosch widebands like to go rich as they start to die.

If it's not that I'd check your fuel pressure regulator. On a Prelude I worked on the car would run in the 10:1 area when the car got hot and the regulator wouldn't open. When the car cooled down and the regulator worked it would run like it should.
Old Oct 12, 2008 | 10:57 AM
  #9  
confUsed's Avatar
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Default Re: won't stop running rich

Checked your plugs to see if you really run that rich?
Old Oct 12, 2008 | 11:02 AM
  #10  
Birdley42008's Avatar
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Default Re: won't stop running rich

FPR, replace it! Before you replace it make sure both vacum sources and the line are in good condition. How are you reading your AF? Maybe a bad wideband sensor.

Reading plugs FTW!



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