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Power Strokes
6.4 Aftermarket
Truck's acting weird.
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[QUOTE="CamTom12, post: 749728, member: 2662"] When shifting from 5-6 with the OD locked within a certain low accelerator pedal position range my RP will drop (starts off around 13k, then drops to a lower value, like 4.9k or 6k or 9k), then pulsewidth will shoot to high values (anywhere from 1.1 to 2.2ms at ~1400rpm). Then it all stabilizes back to normal values. Timing is stable during these events. At higher APP values I don't think it happens since I don't notice the power surge but I don't have logs of that yet for evidence. This is on a new HP fuel system, from the pump to the injectors. This issue started a few months after the new fuel system, so I don't think they're related but I could be wrong. I first noticed this right before my truck randomly wouldn't start, then randomly started again and thought it was battery related, but it's still doing it on two batteries that tested good and hold charge. The batteries have been leaking fluid from the top (not a whole bunch, but they're not clean up there. Looks like someone spilled a 7up on the coffee table.) but like I said, hold charge and tested good on the machine at Ford. I'm going to flash back to stock and reload the tune to see if that works but I was curious if anyone else has any other ideas. [/QUOTE]
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Truck's acting weird.
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