So my vp44 went out
Put a reman in hooked everything back up checked it twice
Push the go pedal and it just sits there no acceleration at all
As the truck got to temp it seemed to do it less often
Edge box says 15 psi of fuel
So popped the hood double checked everyrhing
All fuel fittings tight
All electrical plugs clean and secure
Checked battery connections they are tight
Scanned for codes -no codes
Un hooked negative bat cables and reset apps no change
What else could it be ??? Thoughts ???

02 cummins auto
203xxx miles
100 over injectors
S&b cold air intake
Airdog 150 lift pump
4"downpipe to 5" stacks
Upgraded trans

Soooo what else have I forgotten to check or reset ??
Any and all input towards solution would be much appreciated
Thanks

 

Have you checked the voltage on your apps to the pcm?

 

No I didnt mess with it
I unplugged it from the bottom
And took the 3 bolts out of the top and just laid it over out of the way and put it back together same way
Should I ? Even though I didnt mess with anything else ??
Btw the dead pedal was never present prior to installimg new pump

 

do you have the JWA or just the comp?

I ask because I am curious if the attitude monitor can display engine vitals like the adrenalines pulse monitor can..

if it can and you have it, set one of your gauges on the monitor to display the TPS.

That is part of how I diagnosed my bad APPS.

I had my pulse monitor display the APPS numbers and when it would dead pedal (which ALWAYS caused a CEL for me and P0121 code) the APPS would display 101 on the screen instead of 0-100

 

I do have the attitude
I dont think I can monitor that
Just egt
Engine load %
Boost
Trans temp
Fuel temp
Engine temp
Intwke temp
Rpms
I think thays it

 

makes me think your apps is fine...

APPS will always throw a code.

P0121 or P0122, etc..

 

Yeah thats what I wws thinking and is also idk what else could cause dead pedal

 

Attitude can monitor throttle position. When mine went out i had no code, my voltage was around .205 and was suppose to be set at .468 volts. My attitude would plateau when i got dead pedal, stay at 50-60% when wot.

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Also tried to adjust back to what the specs were and it would jump to almost .9 volts and i would have around 1300 idle.

 

set your attitude to check it and verify the throttle readings...

 

Checking back in
Turned out to be a bad reman pump
So took it back got a refund and bought schied diesel lightning pump
All power is back and then some