Ok,my truck threw it's first CEL which was a PO120 throttle position/pedal sensor;my questions are:

Is this semi common on 3rd gens?

Is this a simple fix?

Out of adjustment maybe?

I want to know beofre I go to my mechanic and get charged for something stupid.

Thanks

 

not common at all. but they wear out

might be a simple fix, could be hard. I am guessing simple.

you replace them with a new one when they blow a code.

adjustment issues do not blow the MIL, adjustments affect performance