Passenger side bank not "firing"

[suiteskull]

I started my 97 F250HD today to get it inspected. It has been sitting about a month since it was last run. It was very hard starting and kept stalling. I checked the oil and it was a little low, so I topped it off to make sure I was getting plenty of flow for the HPOP. Tried again and the same thing so I pulled out my vin locked superchips "scan tool": the dreaded P0344. Off to town to buy a pair of CPS's, one for the truck and one for the glovebox.
I installed an aftermarket CPS and put the new ford unit in the glovebox. The same thing is happening, super rough idle and no power.
Here are the things I checked:
-HPOP oil is topped off
-Valve cover harnesses appear to be okay by resistance check
-When idling I can pull either or both of the passenger connectors with no change in running condition

any thoughts? I am planning on checking the fuel check valve I have heard of that goes from the bowl to the passenger bank of cylinders and also looking closer at the harness.

[atvrider93]

You shouldn't be able to pull those connectors with no change in running condition. Try unplugging the ICP. How exactly did you check the resistance on the connectors?

[suiteskull]

I checked the resistance with a multimeter, center pin to the pins left and right.
I pulled the ICP and it idled up a little but did not bring the cylinders back on line.

[TANPOWERSMOKER]

If you have confermed that one bank is dead or missing, try swaping the Idm.

[suiteskull]

What year IDMs will work? Any 7.3 DI or does it need to be pre-98?

[atvrider93]

Any will work. Later ones are actually a bit of an upgrade

Sent from my DROID BIONIC against my will

[suiteskull]

Should I look for a 98-2003 model then?

[suiteskull]

After reading the GB TB #103 found here: GB Tech Bulletin 103 link
I feel pretty certain that it is my IDM, I am still awaiting callbacks for a unit I can swap to check it.
I hear alot of folks talking about swamps units and other aftermarket upgraded IDMs. Any input on those?
edit: decided to go with a used 120 online. Swamps wanted 475 since mine is semi DOA....

[suiteskull]

Put in the IDM-120 and performed the Ford modification for the e-series powerstrokes found here. It adds some water protection for the future.
Everything is back to normal and idle seems a bit more even.

[FreightShaker244]

What about a idm that only says "Navastar" it doesn't say 100 or 120 like ford ones. I work at a heavy equipment wreckers and found one on shelf.


Sent from my iPhone using Autoguide