P2176 code

Discussion in 'LS, LT, LTZ' started by Allie7, Sep 19, 2021.

  1. Allie7

    Allie7 Member

    Likes Received:
    Apr 1, 2015
    My 2010 LT cobalt with 148k miles has given me the "engine power reduced" message twice in the past couple weeks. The car shakes a lot and won't accelerate easily at all. My husband cleaned the throttle body and checked the wires. It was good for a week and today it happened again.

    Autozone pulled code P2176 for me. If I turn the key real quick on starting and let go, the "engine power reduced" scenario doesn't happen.

    Is it worth it for my husband to replace a sensor or two or even the throttle body before taking to a mechanic?

    List of possible fixes I found:


Share This Page