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I solved this problem sometime last year but forgot to post the solution. Nothing is more frustrating than reading thru these threads without a definative answer! Anyway, it ended up having air locked in the fuel lines. I found a thread somewhere by Missy Goodwrench that gives the best...

Thanks for the no start diagnostics, Paveltolz, I'll try to apply it tomorrow. Looking at the wiring diagram, where exactly are D3 and C3 terminals on the PCM. Those are the fuel inject controls for the IP. The PCM has 3 connectors, 2 pink and one blue. I though I was probing the correct...

Well I ordered a used PCM today for $35. I figured I'd give it a shot before I spend loot on the IP. I'll keep you all posted. PCM should be in by Friday.

I blew the lines out with compressed air, which removed nearly all the veggie in them. Then, I soaked them in straight purple power for about a week while the engine was at the machine shop. I have a high pressure cleaning wand that will injected the purple power thru them on the final clean...

Please verify that voltage on your truck, Paveltolz, which from your profile, sounds like an animal! I have come across a few different sources that list 1.2V to be the proper voltage at pin A. Pin B is clearly a AC voltage that comes directly from the IP. I think you may be misinformed.

All electrical connections are good. Just not getting that input voltage.

Yes all lines are not only cracked, the are completely disconnected at the injectors. Fuel is getting to the injectors from the return lines but nothing from the IP pressure lines.

I have cranked for a total of 30 min not counting the cool down period. I have plently of fuel at the IP as it is coming out of the return with steady flow. Without proper voltage from the PCM, all the cranking in the world won't help.

Thanks for the Stanadyne service bulletin link, WarWagon, however the voltage tests are with the IP powered up and running at a specified RPM. I can't get the engine to spin fast enough to use those tests. I guess I just need to know what sensors the PCM looks at to send the proper voltage to...

First off, I'd like to say this site has helped me out tremendously throughout my latest 6.5TD adventure. Tons of great info and very informative people, so much so I have always been able to find what I'm looking for up until this point, without having to ask for help. I have a 1995 GMC...