P0121 2008 question

Steve40th396 · 2017-12-12T10:48:51+0000

I am going to tackle this this weekend. I am reading many people take throttle body off and clean it. What does cleaning do, in regards to code?. Wouldnt the t positiin sensor need cleaning/replacement? Or is there more to this code I am missing.

By Steve40th396
December 12, 2017 in Gen III and IV Small Block & Drivetrain

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