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International Automotive Technicians Network
Re: Isuzu 7.8 litre 0226 code help
Posted to HD/Fleet Forum on 4/4/2009

You did read this one, right?

[...] [[...]]

I see that you replaced the rail earlier but maybe some left over yuk got in it??? I think that the rail pressure limiter should never open. I would see my truck FRP spike to 34000PSI on an initial WOT and immedi... Login to read more.