Adjusting AF using LS1Edit "?"
05-13-2003, 01:34 PM
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Adjusting AF using LS1Edit "?" How many ways are there to adjust the AF using edit? And which one should I be concerned with? vs. Temp/RPM etc... This is the scary part, asked carputing and the answer was "we just sell it, we dont use it or know!"
05-13-2003, 02:12 PM
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Re: Adjusting AF using LS1Edit For non-WOT adjustment, usually if you have your stock MAF then adjust your Injector Flow Rate table.
For example, my LTFTs were around +8. I multiplied my IFR tables by 92%, which dropped the values by 8%. This tells the computer, my injectors are smaller than they really are, causing it to add more fuel. Adding fuel brings the LTFTs closer to zero. Mine are slightly negative now.
For WOT tuning, you adjust PEvsRPM. Scale it by less than 100% to go leaner. Higher than 100% to go richer. Without a wideband, you can ballpark your WOT A/F by averaging you O2 sensors. Around .890 is good for N/A car.
Do some searches though, there is PLENTY of info on this...
Tommy
For example, my LTFTs were around +8. I multiplied my IFR tables by 92%, which dropped the values by 8%. This tells the computer, my injectors are smaller than they really are, causing it to add more fuel. Adding fuel brings the LTFTs closer to zero. Mine are slightly negative now.
For WOT tuning, you adjust PEvsRPM. Scale it by less than 100% to go leaner. Higher than 100% to go richer. Without a wideband, you can ballpark your WOT A/F by averaging you O2 sensors. Around .890 is good for N/A car.
Do some searches though, there is PLENTY of info on this...
Tommy