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Seeing negative LTrim numbers at WOT

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Old 09-11-2003, 12:05 PM
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Default Seeing negative LTrim numbers at WOT

I've got my LTrims negative (between -1 and -3) but instead of them locking at 0 @ WOT, they are showing up at -1.3. What gives?
Old 09-11-2003, 01:22 PM
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Default Re: Seeing negative LTrim numbers at WOT

How did you adjust your LTFTs?..by injector scaling or by the MAF? I just worked on tuning a car that was seeing +10-12 on WOT and scaled the injectors down and we now see 0 WOT and slightly negative at cruise.
Old 09-11-2003, 02:07 PM
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Default Re: Seeing negative LTrim numbers at WOT

I did through injector scaling (have a stock MAF). When I had a 85mm MAF I did it through the MAF and had the same problem.
Old 09-12-2003, 08:32 AM
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Default Re: Seeing negative LTrim numbers at WOT

I've seen this happen once or twice, not on my car though I don't think. I don't understand it either.
Old 09-12-2003, 04:32 PM
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Default Re: Seeing negative LTrim numbers at WOT

I've got my LTrims negative (between -1 and -3) but instead of them locking at 0 @ WOT, they are showing up at -1.3. What gives?
What are your MAP and MAF values as you transition to WOT and what was your last FTC before FTC 22 (or 15)?
joel




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