replaced the Pedal assembly sensor (which the code called for when this previosally happen 3 days ago) and now its back, new throttle body or would a good throttle body cleaning do the trick? is their a chance the 2 are not talking/linking up?

 

at the level of diagnostics that you are at right now you really need a scan tool that can help you determine those questions. something like a tech2 programmer or one with bi directional controls where you can read sensor / feedback info and allow independent activation tests.
with some of the info i have seen you inquire about i am sure you are more then capable of sorting this out.

 

Start with the easy/cheap stuff. Pick up some MAF cleaner and Throttle Body cleaner for about $8. See if you still get the code after cleaning.

 

If you have not cleaned the Throttle Body recently (or within the last 10K miles), I would do that first before throwing parts at the problem. Easy stuff first.

The messages you are describing can be caused by many different issues so we would need more info to help.

 

There is one post related to your issue. You can refer it if it can help you or not.
https://www.hummerforums.com/forum/h...d-power-24202/