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Ok guys I've posted on Cummins forum but not much help. My vp went bad about 10 months ago I replaced it truck ran good.  2 moths later dead pedal started I bumped my fuel pressure up on airdog165 local shop had it way low. Truck ran good for 6 months. Dead pedal came back also had a low voltage to apps code changed apps with a timbo  and adjusted it per instructions. No more codexpensive but I still have the dead pedal. Spoke with local shop and changed ecm. Still have the dead pedal!!  For giggles I changed my fairly new filters and added 2 grounds along with changing terminals made it 2 and 1/2 months and dead pedal is back. Spoke with a few people including calling blue chips tech line and they think psg  is bad on pump.  My pump is under warranty so I pull it and warranty it out. Driving home tonight and the POS is still dead pedaling. I check alternator which is under a year old a/c voltage is  .028 at worst. Some one please help or I'm trading this thing in and getting a powerstroke! Thanks in advance

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  • Owner

Something to be aware of. If you got to do APPS reset too much you have the first signs of a bad alternator. All the APPS reset does is allow the ECM to see the voltage at idle and WOT. So as for your question about reset again for the pump you shouldn't have too.

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The ac voltage isn't over .028 how do I justify bad alt.