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Re: 2012 Ram 2500 6.7 Cummins P020a, P020b etc.after head gasket
Posted to HD/Fleet Forum on 3/30/2018

I have no experience with the DTCs you have. The DTC description mentions unintended fuel injection, potential for progressive cylinder damage, and to perform the zero fueling event to check for a leaking injector. The info says the DTC is set by monitoring th... Login to read more.