Which voltage pid should i look for, what voltage is it? Overall battery volt?
while cranking my buddy tested and its around 10-10.5 after weak batteries and tons of cranking today

it took a long time cranking but after a few hours of troubleshooting im getting white smoke so it feels like there is fuel? I guess i need to relearn how these suckers work

ran it on a gas rag for a bit, usually between 500-1000 rpm (glow plugs dissconnecteed)and at one brief point u could hear the injectors start to fire and it revved up to about 1500rpm then fell back down .

 

Ah shoot- i wish i still lived in monticello
im in Dawsonville, i havent changed my location cause im a stubborn *******. To change location it wanted me to enter my birth date

yes sir the solenoid spacer and nut are all on there. Im second guessing myself now and want to double check the orientation of the spacer. Im 99% sure based off following the instructions closely

 

10.5v is enough (mine can start at 8.5v in the cold) but a battery charge will help. With all the HPOP oil system open a lot of air got in there, could take lots of cranking.

White smoke means it is getting a bit of fuel. IPR max duty cycle of 65% is the PCM saying "I'm givin' 'er all I can Cap'n!" The .60 ms FIPW is the IDM saying "Can't hear nuttin so here's the minimum". 178 HPOP psi is IPR doing nothing useful.

Pull wire of ICP, should be dry, no oil on it. Looks like OE ICP sensor so it's old, make sure it's dry. With wire off the PCM will default to a ICP value that will let the engine start. Unless the IPR is not cooperating or the IDM is on siesta.

Could be the IPR is stuck open (or that little doohickey mentioned above was installed backwards) but my money is on the wiring not making connection between IDM and PCM or injectors. Looks like you have a DVOM, start checking continuity from IDM to injectors and PCM to IDM. Pull and re-set major connectors to see if any pins got tweaked.

Most of those codes are expected or not related to the no start issue, clear and see what comes back. P1316 is the one to focus on, it indicates the IDM has codes stored in it, and the code is usually "I am not connected to what I want to see" like injectors.

Also pull the fuel bowl heater wire, leave it off until August, and check/replace the fuse. Ya never know.

 

Since it ran before I doubt it's the issue, but you should see 10.5 ohms or close to it on the IPR solenoid.

 

Ah shoot is right. I was looking forward to helping. Dawsonville would be a little further.

At work now but have next couple of days off. I'll have to check with the keeper of the schedule and see if I have anything planned. If she says no I'll grab a trout rod and make a day of it.

 

Thanks guys
about to check these items and report back

 

Im an idiot
fired right up

 

We make mistakes, your not an idiot. What matters is you pressed on in order to resolve the issue.

So, was the IPR unplugged and plugging it in fixed the problem?

 

I appreciate all the help guys

No sir , i had the spacer on the wrong side of the solenoid .
look really closely the difference in the two pictures

 

Don't feel too bad, I cranked on mine once for quite a while before I figured out that I forgot to reconnect the 42 pin. I can verify that they turn over fine without it connected anyhow. And hopefully you didn't already order up a new IPR or anything.

 

Oh man... Well **** happens brother...

Good to hear it was a cheap fix after a bit if extra time taken to study the 7.3 in all of its glory.

Well done sir!

 

I concur....no idiocy here. You had the cab off for the record. A small foul up is just an oversight on a tired brain from working too much LOL

 

hahahah weve all been there in some form

thank you guys, definitely learned me alot on the 7.3’s

very true!! I have a code for idm and injector 1 comes back faulty on cyldiner balance test. Going to pull the valve cover and check to see if i left the connector unplugged speaking of tired brains , lol

also oil cooler is leaking from the back joint....ughhhhh

 

I forgot to mention while apart i also cleaned out the exhaust back pressure tube and fittings. It was pretty plugged up right where it connects to the manifold

 

This



explain the code
lol