How long does it take for your AFR/Trims

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Apr 17, 2005 | 04:08 PM

HumpinSS

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From: Waldorf, MD

How long does it take for your AFR/Trims

to stabilize after a gas refill?

Apr 17, 2005 | 06:59 PM

405HP_Z06

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From: Arlington, Tx

Mine usually take ~25 miles of driving for me.
i.e.Fill-up and drive to work(25 miles) - skewed fuel trims.
Drive home at the end of the day and fuel trims - now stabilized.

Apr 17, 2005 | 07:12 PM

slow

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From: Orlando

depends on the fuel added.

I always use relative fresh gas, and refill it within 5 days, so it is not a big deal

but tuning a car that sat for 5 months, then we added gas while tuning, everything was screwed up, since we were tuning it on bad gas.

Apr 18, 2005 | 07:53 AM

Black02SS

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From: Kokomo, IN

From what we saw this weekend, too damn long!!

Apr 18, 2005 | 12:12 PM

WS6snake-eater

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From: La Porte, TX

I've seen that happen a lot too...Mine always seem to get pushed negative. I say about 25 miles.

Apr 18, 2005 | 03:45 PM

RedHardSupra

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From: Laurel, MD

i usually take 2 15 mins trips, and it's pretty solid after that.

Apr 18, 2005 | 04:44 PM

HumpinSS

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From: Waldorf, MD

Does anyone have an explanation beside depressurizing the gas tank

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Apr 18, 2005 | 05:36 PM

WS6snake-eater

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From: La Porte, TX

Quote:

Originally Posted by HumpinSS

Does anyone have an explanation beside depressurizing the gas tank

nope completely baffled over here...

Apr 18, 2005 | 05:59 PM

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WS6snake-eater

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From: La Porte, TX

anyone ever notice, that you get better gas milage the 1st half tank of gas? HHHHHHMMMMMMMMMMM. I wonder if the negative trims upon fill up have anything to do with that?

Apr 18, 2005 | 07:47 PM

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HumpinSS

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From: Waldorf, MD

LMAO i noticed that with my stock setup. The first half would go by slowly and then after the needle touched the half tank mark it seemed to drink that ****