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6.4 won't rev above 2450 rpm's????
I have a 2008 F-450 6.4L manual 6spd with a full 5" dpf and cat delete,
a 5"magnaflow filter back system, an Sct Livewire tuner, and AFE intake on it. Truck ran great for about 150 miles after dpf delete and tuner installed and then started studdering after 2450 rpm occasionally and thenthe check engine light came on. Then it started to get extremely bad and will not rev above 2450 rpm's in any gear. It falls flat on its face like a vehicle does with a speed limiter. The pedal has no response after the 2450 rpm.
ANYONE have a clue whats goin on?????? THANKS