P0234

pistonbully

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A friend is on the way home just got a code P0234 overbooost. Anyone have ideas as to what is going on to cause this code? Truck isnt shifting right and is running 214 degree's engine oil temp is 215. He let is cool down and it went back up to high temps in a few minutes.
 

sootie

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Does it still have a catalytic converter

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6.0 Tech

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More than likely the turbo is sticking causing the p0234, throttle correllation code is most likely the pedal, but it ought to drive ok with a tp code, as it has redundant circuits in it to help not strand people.
 

pistonbully

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After half an hour of driving it home it cleaned itself up and drove fine. Turbo was replaced in the fall so not a year on it. I do not know if he lets it sit and idle much one thing i do know is he doesnt get on it hard and make the vanes open and close to keep things moving.
 

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