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I have a 2002 F250 with 7.3L diesel. I have check engine light on and no throttle response. It starts and idles.
I have already replaced throttle assembly and still have check engine light and no response.
I just recently replaced 2 injectors not sure if that could be an issue so I wanted to include that.
is There a corresponding fuse or relay, or is it something else?
A code reader you need
Was it an aftermarket pedal assembly?
You need to be able to run the TP PID
Most cheap scan tools these days read about 25-40 pids and TP should be there on all of them
Good luck