Codes P1212 and P1280

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Aug 15, 2014 | 06:40 PM

JPT99

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Diesel Fan

Joined: Jun 2014

Posts: 22

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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

Sep 19, 2018 | 11:08 PM

David Sushchik

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Joined: Sep 2018

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

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