Does any one know how to fix the code P0122(low voltage in APPS) or code P0463(Fuel level sensor 1 high) on a 2000 5 speed Cummins?

 

Hows it drive? I'm pretty sure I had a 122 code and it acted up pretty bad. Try searching on here for APPS adjustment/recalibrate. I don't remember which wire you probe for voltage, maybe someone else here can help me out (I wanna say orange or purple on the firewall) but basically you move the APPS around till you match the voltage indicated on the side of it, that fixed mine.

 

i have 0122 code and the only problem i have is a dead pedal every so often but i would like to know how to fix it also

 

The answer is porbablly spelled VP44. You need the voltage readout on a Starscan or DRB at dealership.

 

Here is the APPS reset and cailbration stuff
https://www.dieseltruckresource.com/...ght=APPS+reset