GM Repair Questions? Ask a Mechanic for Answers ASAP
The TP sensor is integrated into the Throttle Body on your vehicle and not serviceable by itself:
The reason is because yours is fly-by-wire and has an electronic throttle body that receives signals from an APPS(acceleration pedal position sensor) instead of using a throttle cable:
Is there a throttle cable going to your throttle body?
Your engine does not have a separate throttle position sensor. It is integrated into the throttle body.
The fly-by-wire system doesnt have serviceable TP sensors or serviceable IAC valves, this includes the flex-fuel system.
I am saying that if there is a fault code for a failed TP sensor, the entire throttle body has to be replaced. You can do this yourself, but as I said the TP sensor is not a serviceable item itself- if it fails, the entire throttle body has to be replaced.