Posted: Tue Jan 03, 2012 12:26 pm Post subject: Throttle Position Sensor?
The car is a 2006 Impala LT, 3.5L with 97k miles.
I got a check engine light along with rough idling in the cold, and the code is P0121 - throttle position sensor. My shop is telling me they can't just replace the sensor, they must replace the whole throttle body. I have seen the sensors for sale separately from the throttle bodies. Are they right?
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