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Old 03-24-2006, 01:41 PM   #1
AudiobahnSTI
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Member#: 99339
Join Date: Oct 2005
Location: NC
Vehicle:
04 STI
WRB

Default Please help

Ok I have sti w/utec that was tuned up at turbo xs but I am starting to think that since I am at sea level in Fl right now. The car all you smelll when it is running is raw fule and everytime I go and between shifts it back fires. Does anyoine have any idea what could be causing this? I have no clue what it could be and just yesterday while driving it set of the cel and it said the front O2 is high circuit.. How can I fix this? I was thinking it might be getting alittle too much fuel and I need to turn down how much fuel its getting but I wasen't too sure how or what I should set them to on the utec. Please all help would be greatly appericated. Thanks
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Old 03-24-2006, 02:20 PM   #2
SBW
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07 LGT spec-b
Crystal Grey Metallic

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what is done to the car? did you change anything?
more information
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Old 03-24-2006, 03:06 PM   #3
AudiobahnSTI
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WRB

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I haven't cahnged anything that they since they tuned the car with all of my current mods. The lastest thing I did was just replace my headers since the last ones cracked at a weld. Everything was installed just how it was before. The only other thing I did was switch from my hks BOV to a turbo xs rfl BOV. I have no clue what else it could be... I thought maybe since I am alot lower altaitude I might not be getting enough air and too much fuel. I was going to try to load a base stage 2 map and see if it still does it... Would it help if I turned down the fuel at all or anything like that?
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Old 03-24-2006, 03:08 PM   #4
SBW
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07 LGT spec-b
Crystal Grey Metallic

Default

an atmospheric BOV will run you very rich between shifts, it sounds like you had an atmospheric before, but your current one may need to be adjusted.

why not switch back to stock?

Last edited by SBW; 03-24-2006 at 03:15 PM.
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Old 03-24-2006, 03:17 PM   #5
AudiobahnSTI
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Member#: 99339
Join Date: Oct 2005
Location: NC
Vehicle:
04 STI
WRB

Default

yeah I think that maybe why it maybe backfiring. Since it only does it between shifts... Is there anyway to tune that down alittle... It never was this bad with my hks bov... but I also think the rfl is alittle softer spring in it... just curious if there is a way for me to tune it down alittle not to get so bad of a backfire? Also what exactly does it mean when I get 02 sensor high cuircuit? Is that something really bad? I asked a few guys at autozone about it and they were just like nah don't worry about it, its all fine... All help would be greatly appericated.
Thanks
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Old 03-24-2006, 03:27 PM   #6
SBW
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07 LGT spec-b
Crystal Grey Metallic

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atmospheric BOV's generally make your car run pretty crappy. If this is bothering you, you may wanna switch back to stock BOV, your fuel trims could be a bit off too.
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Old 03-24-2006, 04:30 PM   #7
AudiobahnSTI
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04 STI
WRB

Default

yeah I think the fuel curve is not prefectly set for down in FL.. Hopefully it will all be better and back to normal when I get back up to NC.. it hasen't done this before with the hk sthats whats so weird...
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Old 03-24-2006, 11:42 PM   #8
AudiobahnSTI
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Join Date: Oct 2005
Location: NC
Vehicle:
04 STI
WRB

Default

You think it might be anything with the spark plugs... I am coming up to 30k miles it might be time to change those out as well. Anyone think that could be a possiblity?
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