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View Full Version : WOT only 80% Why... L76


MN C5
November 17th, 2007, 06:44 PM
Has anyone else scanned theirs? I've got a NBS VMAX and I can't find anything I've done to limit the throttle from opening all the way. Went back to a stock tune and the same issue. Wonder if its set that way from the factory.. :bash::nixweiss:

On another note after playing with the E38 ECM all I can say is GM went a bit over board with all the spark timing controls. Gadzooks, timing added, subtracted and multiplied.. for cloudy days, rain, snow ect.. j/k...
XLR8NSS
November 30th, 2007, 01:38 PM
I just got a '07 GMC 2500HD 6.0L(LY6)/6L90E. The scanner only shows 83% TPS at WOT. I haven't verified if it's the scanner or the blade is only opening that amount.
JezzaB
November 30th, 2007, 03:37 PM
Does it have ETC? Are you logging the ETC TP or Normal. Ive had dramas with ETC and not changing the PID
Gelf VXR
December 1st, 2007, 12:37 AM
http://forum.efilive.com/showthread.php?t=4231&highlight=88%25
MN C5
December 2nd, 2007, 05:44 AM
http://forum.efilive.com/showthread.php?t=4231&highlight=88%25
Thanks Gelf but that isn't any help. The throttle blade isn't opening all the way. I'm working on a few other things and won't get back to the blade opening until I get it running again.
mr.prick
December 2nd, 2007, 10:27 AM
is there a parameter that states the value of WOT,
like the LS1 PCMs have?
RonC
December 2nd, 2007, 11:49 AM
is there a parameter that states the value of WOT,
like the LS1 PCMs have?

The GM.ETCTP pid does it for me on my E38 scans, indicating 100% at wot.

Ron
MN C5
December 19th, 2007, 04:08 PM
You need to log the ETC % and/or other ETC pids for the correct %. For some reason GM interprets the SAE TPS PID as absolute voltage % (ie. the % of 5V on the TPS sensor, which at WOT is something like 4.39V or 88%). Don't ask me why, i just work here... http://www.hptuners.com/forum/images/smilies/smile.gif

If you log the ETC or Pedal PIDs you will see they go to 100% as expected.]

Found this on the other site. I ended up with a new TB via warranty.. but for others finding that WOT isn't 100% this could be why
arubenstein
December 26th, 2007, 07:15 AM
The GM.ETCTP pid does it for me on my E38 scans, indicating 100% at wot.

Ron

The question is, however -- in other tables, where it references TP (say, like TCC Apply, etc), which TP is it referencing? SAE, or GM?