Mine does not throw any codes, the pedal just becomes dysfunctional til a key off, restart. I have found the car had several mode, code pulley still on, CAI was replaced with stock. It might have a sprint booster on it, when normal, pedal is touchy compared to my NA cross fire. Might be issue with that if it has one, possibly pinched wire, or just a dying APPS. Best price I found on a new one was $165.00 plus s/h.

Not sure I would want to buy a used one and then have to get another in 6 months if it went bad. When I get Blazer out of garage today, going to look at APPS to see if can find any external issue.