2011 Chevy Durmax wiring harness
My brother has a 2011 Duramax and after replacing two injectors, transmission solenoid and computer all on different days during our time together, found out it was the wiring harness that was bad. GM shipped the wrong part twice. This harness was changed for the 2012 year and the service department took one off a 2012 when GM shipped the wrong part and the master plug is a different size. So if you have a 2011 Duramax and start having multiple check engine different codes, it might just be the wiring harness. My brother still loves his Duramax but is ordering a 2013. I love mine also 2007 Classic.
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