Motor Swap Not mine but have a vested interest

The truck is a Standard 4x4 24 valve with a Edge chip hard wired in (still)

. okay the motor is in and buttoned up so to speak they used the ECM that was on the Donnor motor not the original motor's ECM
By ECM i mean the one on the block Right term ?
Will that make a difference ?
anyway the motor cranks has lots of fuel right up to the injectors but no fire None
I don't have a code reader to see if it is droppin codes
Any Ideas

 

I will try to help a little. This is my experience with replacing a vp44.

I had a hard start after the replacement.

I had fuel at a couple injectors and cranked fine. Just would not start no matter how much I cranked it.. Actually killed the batteries trying.
I had to recharge the batteries to get a full charge.
I cracked all the injectors.(except #6)
As fuel would come out an injector, I would tighten that one up, until all the injectors put fuel out.
At that point, it just took a lot of cranking...
Maybe 20-30 minutes of actual crank time..Over the course of a few hours.
Sometimes a shot of ether helps, but please make sure the grid heater is not hooked up.....

 

They tried all of that Except for ether . they have battery chargers on both batteries lots of fuel cranking and tightening as we go
Plus it is in heated shop . They don't have a code read so i will hunt one down tomorrow hope

 

Don't use ether. Did the engine run before the swap? Do scan it.

 

are the engines from the same year?

 

I don't know if it is the same Year .There is no cast number on the Block or head. it still has ESN but have no way of running it ' will try Case tomorrow

 

If your ECM is bad it wont fire try installing the original also make sure you double check that all the wires are plugged in and in the right plug.

 

Had the Guys change to the original ECM I found one wire that was not plugged in Had A bugger of a time trying to figure out were it went
I had to leave But was just told the truck fired .Wooot