Q: I changed the throttle body on 2006 Chevy impala and it says service throttle body after resetting it.

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Our 2006 Chevy impala was giving error decreased power so we changes throttle body and reset it now it's saying service throttle what do we need to do its a 3500

Hi there. Check the resistance on the throttle position sensor on the throttle body and the throttle pedal position sensor on the gas pedal. There should be a resistance on the sensors. If one or both sensors have no resistance or have a really high resistance, then I recommend replacing that or both sensors. If you need further assistance with your throttle body service message, then seek out a professional, such as one from Your Mechanic, to help you.

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