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Old 07-22-2003, 08:37 PM   #1
bryan2.5rs
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Member#: 6807
Join Date: May 2001
Location: Cape Cod MA
Vehicle:
2005 STi
Crystal Gray Met.

Default fuel problem

i have a 2001 rs with wrx turbo, i have a 2.2 short block and a RRFPR, when i am on the highway trying to maintain a speed my AF Ratio gauge goes into stoich to much and i keep throwing a CeL PO130 o2 sensor to lean i checked the fuel trim and the ecu is telling me that the short term is 37 and the long term is -20% it is my understanding that it should be at +7% FYI this was freeze frame data from when i tripped the CEL PO130, any help would be greatly appreciated, THANX Bryan
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Old 07-24-2003, 09:28 AM   #2
bryan2.5rs
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Old 08-06-2003, 08:52 AM   #3
bryan2.5rs
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Old 08-07-2003, 08:58 AM   #4
ChicksDigWagons
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New Turbo Project...

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Do you have a fuel pressure gauge? Its interesting that at cruise you're throwing a code like that. I would expect having the ECU in closed loop would just compensate for changes in A/F. Unless the lean burn RS's aren't as receptive to change outside of the expected parameters...

-brad
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