patriot pearl blue

I got this code p0230 once "something went bad with my 25 mile VP44".

OK... per the 2000 powertrain diagnostic procedure book it states...

Key Off , disconnect wire conn at transfer pump.
Measure resistance of the ground circuit to an engine ground (pump side)
Is the resistance ABOVE 5.0 ohms

NO---> Replace the transfer pump. ????

Is that right? Shouldnt the resistance be BELOW 5.0 ohms?
My BRAND NEW TRANSFER pump is OPERATING fine, 13 psi, lots of volume and with the harness plugged in. I did not get this code, or any codes until i goosed the truck DOWN LOW RPM to try and get black smoke. it was a turd, no smoke, and acted like it was not getting fuel. BUT i have a clear tube off the bottom of fuel bowl, i get no air and alot of volume.

Why no code until this puppy went crazy?

Hauling a skid steer, the truck was back firing thru the intake, acting as if the vp was not getting volume, but before i buy another transfer pump ( if you can see the attached photo, mine reads 1.3 ohms ) Why would you need a higher resistance to be a better pump?????

rebal

check to make sure the vps key way is still ok not sheared

patriot pearl blue

OK thats same thing that cummins said, but i was getting these codes im about to list, and when i pulled out my other injector pump, the keyway was not sheared and no slop in the key hole on gear.

I opened my cummins book and these were the codes i had BEFORE swapping inj pump.
p1693
p1689
p0216

I found a print of vp44 to ecm, and need to disconnect and run power thru with solenoid at end to see if there is a wire that has corroded and wont carry the load, both ends all look brand new. That or call cummins and ask best way to test wiring, that or just repin with new wires, were only talking 9 wires here.

I deal with can bus harness's on large aerial equipment, so its nothing new.
Do you have a suggestion for the harness?

I did clean battery cable ground on the pass head, but have not pulled the ECM off the side of the block.

Also, last year when i jumped started my other truck, this dodge just has not been right ever since. Id been battling the vp44 prior to that for over 3 years.
Hey man, thank you so much for your time.

BW

Lary Ellis (Top)

What is the fuel pressure at wide open throttle when it craps out?

patriot pearl blue

I will check that when i can get rid of these codes first, the truck is FINALLY broken, before the codes went away after key cycles, but now after the low torque hit i get all these codes that i didnt have before ,,..the transfer pump code or the apps.

Honestly i think i just figured it out, the black wire in the can bus harness may be grounded out causing the code and the resistance that should not be there.

Do you know what the wire on post #10 does?

http://forum.mopar1973man.com/showth...l-to-injectors

Its the far left one #44 out of the ecm and it says the ending of it is un determined?

Drain wire.....

Lary Ellis (Top)

The reason I ask is the fuel pressure at idle means nothing, WOT we don't want to see below 5 psi and I prefer not to see below 7psi. This can tell you real quick if that pump is bad in the tank.

patriot pearl blue

Hey thanks for the reply, I was busy Saturday installing pressure gauge at vp pump and clear tube from bowl to vp. Once i check black then white wire for canbuss circuit I will start driving

I'm now getting these code replugging batt cables after 5 hours. Then turn key on and not starting the truck I get bad codes, never did this before

I will check volume and pressure at wot if I get a chance

patriot pearl blue

Pump is on block, truck never been to dealership and I bought it with 17 miles
Glad I never had it campaigned for in tank pump, too heavy to lift on side of road so I never did it

Junk Man

FWIW, MWFI called my reseller when they received my core & said that I had gas in my fuel & that was what took out my new reman VP (and likely the original). No way to prove it.

Friend of mine that owns a small gas distributorship said that It is expensive to test fuel. I couldn't prove where I bought the fuel or make the station pay so I drained the tank & now load up with Stanadyne Lubricity. Gas & diesel are on the same delivery truck & drivers can pump into the wrong tank.

patriot pearl blue

Hey good point . The truck was real low on fuel. So I took 2 6 gallon cans and used those on this dodge before start up.
I also filled my powerstroke at the same time and I've put 120 miles this weekend and it has not skipped a beat...
I will test for gas, take some out of system and throw on ground hit it with torch and if it ignights then possible gas

Junk Man

I haven't checked on a Powerstroke but not many injection pumps are as sensitive to lubrication as the VPs.

patriot pearl blue

If it was gas that I put into my 2000 psd, I'd be having issues with it too

Thanks for the suggestion and I will try it too

Cummins called back and said they would test the pump, but I'm going to test can buss wires first then find a ECM. Then remove new pump and test it

At least I'm not throwing inthe towel yet