Help with engine power reduced

[2004LB7]

I'm going to guess that most if not all the problems are a result of the delete and tune

 

[2004LB7]

has the throttle blade been disconnected or are the electrical plugs still plugged into it? its a known issue that if the truck is deleted and the throttle blade is still on the truck, the blade needs to be disconnected.

first time hearing about this. never had any issues with mine when it was deleted and the throttle blade remains intact and plugged in

 

[Ron Nielson]

If the scan tool has both pedal readings, it might be interesting to look at them, you may have some information you can use to determine the problem. See here:https://www.duramaxforum.com/threads/throttle-position-sensor.967105/

 

[Chevy1925]

first time hearing about this. never had any issues with mine when it was deleted and the throttle blade remains intact and plugged in

I think it depends on the tuner from what I remember but it can cause his issues. There was a couple guys who had that issue on here before

 

[2004LB7]

I think it depends on the tuner from what I remember but it can cause his issues. There was a couple guys who had that issue on here before

well then I guess my tunes must be better then I give them credit