A/F mixture from STFT and O2SV
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6th Gear
Joined: Feb 2005
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From: Florida
A/F mixture from STFT and O2SV
Does anyone know how to correlate the A/F mixture from short term fuel trim and o2 sensor voltage?
Right now, on a 3rd gear pull from 1000 to 7000, my stft remains at 0, and o2sv is at .89 until 4500 when the JCW intake flap opens, then it shoots up to .96.
I'm looking for something to figure where I'm at, to improve the MTH I can get back.
Right now, on a 3rd gear pull from 1000 to 7000, my stft remains at 0, and o2sv is at .89 until 4500 when the JCW intake flap opens, then it shoots up to .96.
I'm looking for something to figure where I'm at, to improve the MTH I can get back.
I'm doing the same thing, just differently...
The narrow band are only good to say "lean" "OK" and "Rich" but it's not too good at quantifying the actual mixture. So I'm getting a wide band and will log the data, like they do while running on dynos......
For my MTH, I noticed very light pinging, and had some timing adjustments done. It improved things as well.
My hope is with the A/F maps, I can send them into Franz for improved tune files.
Matt
For my MTH, I noticed very light pinging, and had some timing adjustments done. It improved things as well.
My hope is with the A/F maps, I can send them into Franz for improved tune files.
Matt
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