3rd Gen Engine and Drivetrain -> 2003-2007 5.9 liter Engine and drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

code po234

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Old Jun 17, 2008 | 09:46 PM
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From: Pontiac Illinois
code po234

Truck was really beginning to start hard 4-5-6 cranks. Fuel pressure was down, so wwnt out and replaced the lift pump.
Started right away for about 30-60 starts. Now it is back to 6-7-8 cranks and spit out po0234 ( turbo boost limit exceeded). I feel like every start is going to be its last one. How to Fix?
map sensor? What where how?
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Old Jun 18, 2008 | 06:14 AM
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bump bump.
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Old Jun 19, 2008 | 03:57 PM
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new code from shop scanner.
po 35
aps relay output circuit open.

what part is this to fix?
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