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what is code po506

Vehicle: 2006 GMC ENVOY
asked Feb 21, 2012 by anonymous

1 Answer

HI there,

This code means the engine rpm is lower then expected. This vehicle uses and electronic throttle body and there isn't any adjustments that you can make on it. There are other possible causes that could do this, a dirty throttle body or leaking vacuum line could do this. A poorly running engine could cause it as well.
answered Jul 7, 2016 by Carguy1 (4,977 points)

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