Engine Code P0121 Chevy Monte Carlo 2006?
I took my car to a shop and after they read this code they suggested I replace the entire throttle body. This doesn't sound correct to me...The car only has around 90,000 miles. I've also heard of cleaning the throttle body and changing the air filter (which does need a change). Also, the GM employee stated that the sensor could not be replaced by itself, the whole body had to be replaced. None of this sounds correct to me, what do you think?
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