Codes P1212 and P1280

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08-15-2014, 06:40 PM

JPT99

Diesel Fan

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Codes P1212 and P1280

I removed my HPOP and replaced the O-Rings and IPR Valve O-Rings. Put the Pump back in, filled the Resevor with fresh oil. Tried starting the truck and it just cranked and now its throwing codes P1212 and P1280

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09-19-2018, 11:08 PM

David Sushchik

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Hey did you figure out what the problem was? I’m having the same issue

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