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I took the pedal over to my 04 Yukon, and the pedal is operating it's TB 100% at about half travel too, so I ordered a new position sensor for an '04 Yukon, and I'll try it that way on Monday.
Not sure about ETC tb's but cable equipped vehicles normal tps read is about .5V closed and around 4.5~ WOT. Over that usually causes shifting issues or failsafe mode. Original owner of my ls car got carried away with the bumpstop mod and it caused problems.
Ok, I've got the 03-06 version. Maybe I somehow ended up with an '02 pedal... who knows-- I will try a new '04 pedal sensor on Monday and hopefully this will straighten things out.
the throttle pedal assy is different from03, 04-05, i have see this issue before,, the different pedal along with the tune differance will cause this issue,, depending on which way you go you will either only have 1/2 throttle at wot pedal, or full throttle at 1/2 pedal
need the correct year pedal to match the tune in the ecm
__________________ 415ci stroker, Magnacharger TVS2300, cnc heads, cam, yank ss3200 converter, Kooks long tubes, Bwoody true cold air kit, magnaflow 3" cat-back, lowering springs,BMR control arms and tie rod bars, 3.73 gears, diff mounts
the throttle pedal assy is different from03, 04-05, i have see this issue before,, the different pedal along with the tune differance will cause this issue,, depending on which way you go you will either only have 1/2 throttle at wot pedal, or full throttle at 1/2 pedal
need the correct year pedal to match the tune in the ecm
Are you saying it's in the pedal mechanics? Or an electronics issue?
the throttle pedal assy is different from 03, 04-05, i have see this issue before,, the different pedal along with the tune differance will cause this issue,, depending on which way you go you will either only have 1/2 throttle at wot pedal, or full throttle at 1/2 pedal
need the correct year pedal to match the tune in the ecm
I was under the impression that the 03 had a different part number than 04 also. I looked it up on the system we use and the pedal is the same between 2003 and 2004 in this catalog
Although the 03 and 04 APP sensors are different PN's, they both seem to operate about the same way. At rest, TPS is registering about 20% by half throttle, it's up to 100%.
What's next???? New pedal assmbly from an '03 GMC?? I think the pedal I have now is from an '04 2500 Silverado.
New assembly was already suggested, but I haven't seen any indication as to why a different one would solve the problem, or how I can tell for sure which one I need to get.
DBW pedal is 100% WOT at 1/2 pedal travel 
