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And in closing, I too have found the exact same issues. 2 GPs were down and starter is spinning slower than normal. I should be slapped for not looking further into the GP system. Individual testing showed about 15A draw per plug when first lit, then reducing a bit as they heat up due to...

Ok, here is where we are. After talking with a guy, I decided to agree and plug the truck in, with the truck cold, but in the middle of the summer. The engine was almost too hot to touch but truck had not started for 2 days. Perfect test. Truck fired up PERFECTLY with very little smoke and...

Ignoring the safety aspects of this for now, I have my LP wiring to keyed on power and ignoring the OPS. I understood the system to be like a gasser where when the pumps runs, it flows fuel continuously and any fuel not needed is returned to the tank thus no issues regarding operation. I...

I have read where some people run 2 stroke oil, or even a Standyne additive. I am experiencing 35 and 36 codes as well as well as spontaneous dying. I have 4 PMDs and all do the same thing. I was told by a shop that the ECM will shut the truck down if the fuel solenoid is not behaving enough...

OK, what I found is a fuel leak right at the T valve. I sealed that up and will have to wait until morning to see if the starting issue resolves.

One of the first things I think I will do is find out what the crank speed "should" be, as well as acceptable voltage drop, etc. My starter is pulling 400A, bats surface voltage is 12.6 and with 400A load goes down to 10V. I have .9V drop from bat to starter. That means the starter is seeing...

Guess I have some questions. 1. is there any way for the IP to purge air from itself once air is in? 2. As I understand you, the return lines back to the IP come from the injectors and if they do not seal correctly, it is possible for the cylinder to ram air back into the injector...

Um, here is a dumb ass question but I have NEVER had a fuel tank cap on this truck. I know there is no water in it because it just sits in the shop but something worth mentioning... I would be PISSED to learn that is all this is...lol

To admit my ignorance due to a lack of info, it would seem what I actually tapped into was the fuel supply line to the IP. Here is how I see the system, please critique as needed. fuel comes from tank, through LP, to bottom of filter housing, has to be a regulator somewhere and fuel return is...

I think what you are saying is checking the actual coolant temp compared to the ECM perceived data? I have looked at that a bit, even tested the resistance on the CTS and all seems in check. Dash gauge is a bit off but who cares... I did find the ground in question and I think I have...

Tested several sensor plugs for 5V reference. 5.01-5.04VDC. I have cleaned the bat grounds to the engine and such. Not aware of any others that would cause this but I am all ears.

I reset codes and ran the truck. Code 29 always immediately comes up. I did not see other EGR codes but they are common and should not cause this. The ones that are concerning me at this time are 35, 36. At least 36 seems to be coming right back when the truck is running. I am using...

VIDEO http://www.youtube.com/watch?v=P541tZHUKto Please note, the truck started a bit easier because the CTS was unplugged forcing more timing and fuel. Usually takes 3-4 attempts with the stumbling you see in the first attempt and usually dies once or twice. You will see in the second...

I am going to upload or link a vid in a few. I decided to go check codes on the truck. I have unplugged the EGR and turbo boost control circuits. I use a mechanical boost spring so I am used to seeing the EGR and boost codes. Also, I unhooked the boost sensor last night so that code should...

Lift pump and fuel shut off solenoid have been bypassed to switched 12V. Truck will run all day with T valve open dumping approx 1 gal/min. The only thing I have not tested is the actual pressure from the lift pump. I guess it could be that the lift pump cannot build pressure but can move...

Very frustrated with this issue. Problem is truck runs fine otherwise. Hard to start regardless of ambient temp, PMD replaced, lift pump good, etc. truck will take 2-4 attempts of approx 10 sec each. truck will blow gray smoke and stumble along just like when you have to reprime after...

You nailed that down to a board......... X2

On an OBDI?

really not sure what you just said. KO KO??? I did read the sticky. Did I misinterpret something?

I am working on the truck through my own software. I can pull any level of data I need from the ECM, but there are specific mode codes to put the ECM into time and learn modes. They are simple "words" or computer codes. Also, the sticky does not clearly ID which way to turn what to get...