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AFR is high how do i fix

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Old 02-22-07 | 06:36 PM
  #1  
zack4173's Avatar
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From: Bonney lake Washington
Unhappy AFR is high how do i fix

high like the title says my AFR is high. well i think its high when im driving its at 14.5 to 14.9 depending on how im mashing on the peddle. i recently had my engine rebuilt and i have the mods listed in my sig. My AFR is the same with the Power FC and the stock ECU> I was just wondering if there was any functions on the power fc that i could try. I have tried to raise my injector up but the AFR stays the same. i am just seeing the AFR through my apexi turbo timer that has an AFR option that may just not be working but any help from you guys would be great thanks guys.
Old 02-22-07 | 06:40 PM
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what do you mean by mashing it? those readings are a bit OK, for cruising steady. you should take it to local rotary tuner and see if they can figure it out and do a tune. if you dont feel comfortable with the PFC then i wouldnt try fixing it. expecially when you dont know what settings affects what
Old 02-22-07 | 09:16 PM
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rynberg's Avatar
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From: San Lorenzo, California
The AFR reading from your turbo timer IS COMPLETELY USELESS at anything other than cruise conditions. Cruising, it should be around 14.5 (should bounce between 14-15).
Old 02-22-07 | 09:25 PM
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From: FL-->NJ/NYC again!
Get a real wideband with a 4 or 5 wire o2 sensor if you're worried about it.
Old 02-23-07 | 12:14 AM
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thanks i was wondering if the turbo timer AFR was good or not but i trust you guys now i just need to by an AFR then. Thanks again
Old 02-23-07 | 12:33 AM
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From: chatsworth,Ca.
Originally Posted by GoodfellaFD3S
Get a real wideband with a 4 or 5 wire o2 sensor if you're worried about it.
this guy is an ******* but he is 100% right!! get a real wideband o2 meter for accuracy
Old 02-23-07 | 12:52 PM
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From: glen burnie, md
Originally Posted by 680RWHP12A
this guy is an ******* but he is 100% right!! get a real wideband o2 meter for accuracy

LOL

And then if you see 14.5 while boosting, you're in danger.
Old 02-23-07 | 02:23 PM
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From: buffalo, ny
yea 14.5 under WOT would be a bad thing
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