the STF reading on my scangauge has been -8 all day.... is this a problem?
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A little off but not too critical...>
Not to worry until it gets +/- 10%. Won't hit lilmp until +22 (Lean correction). Minus numbers are a Rich correction.....Remember, this is Only a correction factor. You're fueling is actually spot on, it's just the ECU is adjusting things leaner to compensate. No real problem, though an adjustable FPR can get those numbers closer by reducing fuel a bit. I used to run at 3.8 bar. Running a bit rich is way better than running lean especially if you're adding boost via a BM...
What are the LTF numbers? They are more meaningful.
What are the LTF numbers? They are more meaningful.
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Joined: Dec 2000
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History shows...>>
a drop in 4 bar and a good MAF usually steadies out at about -4% with a ****...
You don't need a new one at this point as long as the G/sec output is OK...If you're desperate to spend some mod dollars, an adjustable FPR willl give you some additional tuning flexibility!
You don't need a new one at this point as long as the G/sec output is OK...If you're desperate to spend some mod dollars, an adjustable FPR willl give you some additional tuning flexibility!
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Joe Kucinski
AudiWorld Uber User
Joined: Dec 2000
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Yup...Tune your fuel output..>>
to get as close to "0" correction as you can..
It's really the only way you can adjust fueling easily without changing injectors, going standalone etc.
I've been doing this on the Vette lately. I can scale the MAF output, and adjust fueling so it's pretty easy watching the LTF's and Wide band and getting it all in line. Unfortunately you don't have that luxury on the TT..Only the fuel with an adjustable FPR..A good investment IMO.
It's really the only way you can adjust fueling easily without changing injectors, going standalone etc.
I've been doing this on the Vette lately. I can scale the MAF output, and adjust fueling so it's pretty easy watching the LTF's and Wide band and getting it all in line. Unfortunately you don't have that luxury on the TT..Only the fuel with an adjustable FPR..A good investment IMO.