Reduced Engine Power

By cardr69
December 8, 2010 in Ask A GM Technician

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cardr69

Posted December 8, 2010

I have a 2003 Chev Silverado with a 6.0 ltr and a 4l80e trans 4x4, and my problem is that it comes up on the message saying reduced engine power, I scan it and it comes up with code P1516 unidentified code, when I clear it truck runs great again, driving me nuts, any idea what the problem is. Oh! also I sometime get a mass air flow light on, if I remember I think the code is P101. any help would be great. Thanks

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