I just had time to review 3 sets of live data across multiple RPM ranges I'm seeing a common thread.
The LTFT on both banks seems to me to be very lean at idle -9% to -14% (not getting enough air?) At higher RPM'S it reading +5% to +9% (getting to much fuel?) I was under the impression that...
Wondering what you all think would be a good tune for my gas hog. Not looking to brake the bank here. Tell me what you know about what the gains may be, thanks in advance.
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It has an Idle Position Sensor build into the TB I believe. Not sure about a vacuum leak only because the STFT and LTFT are with +/-5%. I guess I could take a can of brake cleaner to it.
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Just recently replaced my alternator thinking because it's diodes were going bad was why my idle was rough. Turns out that was not the case. The voltage swing is gone (except now when the idle drops, so does the voltage) but the idle bounce is still there. (We're talking from 600, to 500 then...
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