Reduced engine power banner comes on
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CF Beginner
Joined: Aug 2013
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Reduced engine power banner comes on
The reduced engine power light keeps coming on. When I turn the car off and then start it back up it works ok. This is starting to be an issue I cannot seem to get a straight:confused answer on the problem from mechanics. 
CF Beginner
Joined: Jan 2014
Posts: 1
Likes: 0
Gentlemen,
there have been many different fixes for this, some work some don't because they may not be the same issue for everyone. For me here is what I did. I have a 2009 GMC sierra, had the reduced engine power problem show. I researched and ended up taking the advice of a chevy mech. Have the code read, if it say anything related to the throttle body position sensor, try this first, CLEAN THE TROTTLE BODY before you take it the dealer. I used seafoam. the code cleared, its been two years and it hasn't returned. I just clean the throttle body every now and then......$10 fix
there have been many different fixes for this, some work some don't because they may not be the same issue for everyone. For me here is what I did. I have a 2009 GMC sierra, had the reduced engine power problem show. I researched and ended up taking the advice of a chevy mech. Have the code read, if it say anything related to the throttle body position sensor, try this first, CLEAN THE TROTTLE BODY before you take it the dealer. I used seafoam. the code cleared, its been two years and it hasn't returned. I just clean the throttle body every now and then......$10 fix
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