I have a 1999 Yukon Denali with a 6.0 LQ9, PCM Service # 12589462, OS 12587603. I am having issues trying to get the fuel gauge working.
Originally black box PCM. This is a PWM fuel gauge driven by PCM. What frequency should I use? The sender type should be "0" for single tank, but when I change it from "3" to "0" then save it reverts to "3".
Also the F0505 (7003) Primary Capacity Gauge is 270 gallons and I cannot change it either. I have tried several .XDF's with no joy.
Any help or suggestions welcome.
.BIN file attached, .XDF file "12587603 - Release.xdf" from this site is too large to attach. I can email .XDF if needed. I do not have enough experience with UP to try it for this issue.
Jeff
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