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ECMlink Idle and Cruise log

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odormat000

15+ Year Contributor
147
0
Mar 5, 2008
Vancouver, Washington
Here is an idle/cruise log using dsmlink v2.5 (v3 software) and my afrest is much more rich than my plxwb. Does anyone know what may be causing this? Also if there is anything else someone see's that might help your feedback would be appreciated, thanks.
 

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Using my limited knowledge of DSMlink, some things seem to need a little attention.
Some ideas:
1) Screw your BISS out (counter-clockwise) to lower your ISCPosition value from the current 39 to the desired 30 during warm idle (>190*F);
2) Lower your MAFComp % sliders (lowers AirflowPerRev gm/rev), possibly to 2.3% at 50 hz for a warm idle AirflowPerRev value closer to 0.25 gm/rev (from the current 0.29 gm/rev), unless you have a 2.3L; and
3) Increase your Deadtime value (lowers CombinedFT %), possibly to 90 usecs (although, I do not know why your CombinedFT mimics/matches your STFT throughout your log).
Here is a video illustrating these adjustments (first, you need to download “Video Codec for videos”
ECMTuning, Inc.),
http://www.ecmtuning.com/demos/fueltrim.html

Concerning your AFRatioEst during your cruise, to compensate for the AFRatioEst being rich compared to your plxwb gauge, slide your MAFComp % sliders up to achieve a better match. Here are some explanations.
GMAF Calibration for LTFT
maftcalibrationbywbo2 [ECMTuning - wiki]

You could also clear your DTC (0013), yet with -74*F IntTemp readings it may return.

Others may provide better ideas than me, meaning keep an open outlook.
 
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