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FPCM codes. Cuts out with moderate acceleration.
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Question
jacksl
This is the problem. When 3/4 to full throttle the truck seems to act as if its out of fuel. Cuts out and bucks and jerks. At easy throttle I can run it to 6000 rpm no problem. Any load or full throttle has issues. Finally got a CEL. P0191 (rail press circ voltage range) and P069e (FPCM Req MIL illum). Truck is 2007 silverado 4x4. 6.0l. 112k miles. Tuned 40k miles ago. Just now having issues. Not been to dealer yet... Any thoughts?
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