welp..2 days is all it lasted...02 stranded me

dieselbeef

dieselbeef

dick doggin
122 code..cant reset it..disc batts...tried a different apps...code satys...

quit going down the road..went to pass..mashed the pedal...just quit...

lift pump dont cycle when ya bump the key..

hot wired the fuel pump..15 psi...cranks but wont run...

5v issue again i bet like the last time i had a bad map sensor...

or the ecm is bad since it wont run the vp or the fuel pump

oh ya..the 01 the kids is ruining cuz he took it half apart and left it like that.....threw a crankshaft position sensor code and wont hardly go over 60 mph...trans is hit and miss
 
P-pump it!!! ?
You knew it was coming! It'll get better, just ride the bike to work in the meantime.

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It's probably the trucks rebelling at your intent to add a common rail instead of another VP truck!

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pals..how bout why dont the lift pump run when i turn the key...ecm controlled so..idk

it has a 122 code..my readerwont even reset it..always reset stuff before..isnt finding it to clear it..

on another note...best place for a smarty touch....
 
The pump won't run unless you bump the starter. Then it should run for a few seconds. We've built a harness here that we plug in directly to the pump harness and connect to the batteries to prime them.
 
Is it getting fuel to the injection pump at all? If so, to the injectors? Try giving it a snort of ether WHILE CRANKING to see if it fires?

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Dang it, Gary. I think maybe you need to change your name. Most fellows I know named Gary have a lot of truck trouble.

You know, it's kind of like moving the Deer Crossings.

Just trying to cheer you up a bit...LOL
 
BigPapa said:
Dang it, Gary. I think maybe you need to change your name. Most fellows I know named Gary have a lot of truck trouble.

You know, it's kind of like moving the Deer Crossings.

Just trying to cheer you up a bit...LOL
Click to expand...

I say we just call him schnookems from now on.
 
i jumped the pump..it runs..fuel to the vp banjo..15 psi...when ya bump the key..nothing..even with the pump jumped out and running it wont fire..the 122 is a hard code i guess? whatever that means..but it wont let the vp work either...its all part of that 5v bullshiz i delt with on the map sensor last yr...im gonna try another one of them tonite if i have one also..apps didnt help or rest the code...

the kids truck made it to work barely..needs a cam pos sinsor so maybe tonite too..

im sick as a dog so its hard to even go to work much less this grief
 
dieselbeef said:
even with the pump jumped out and running it wont fire.
Click to expand...

You are referring to the lift pump here?

In that case, lift pump wired to run constantly, you have fuel at the fitting feeding the injection pump, cranking on the engine, no fire. Correct order of operations?

When cranking, does fuel squirt out of injection pump line at the connector tube? Have you swapped the ASD relay with the horn relay to verify relay function?


Your issue intrigues me because I have a neighbor who parked his 99 VP truck due to no start issue. It was at a couple shops and they didn't solve the issue. Truck has 500k on the original engine, all stock power, NV4500, 4wd, original owner. It's rough but I know it's in decent mechanical condition. One day he will be tired of me asking to buy it and finally sell it.
 
i did some relay swapping . yes thats pretty much correct fuel pump pumpng..hit the key just cranks no fire...didnt go any further down the inj lines but i will...my elec guru cant look at it til monda so i got time to screw with it
 
Aren't the two trucks the same yr? Can you just swap parts between them as a quick check before buying a bunch of stuff?

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