PO 121 PO122 Malfunctioning Throttle Position Sensor? How do I fix this?

Question

Engine light come on
The scanner tells me PO 121 PO 122
The Throttle Position Sensor malfunctioning. How do I fix this?
Is the part expensive? Cadillac DeVille 2004 Motor 4.6

I'm looking for a price on the part?

Answer 1

The price is 35.00 dollars on average.