Diesel Forum - TheDieselStop.com - View Single Post - 7.3 powerstroke won,t start
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post #29 of (permalink) Old 04-13-2019, 09:17 AM
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Are you 100% certain you got all the air purged from the high pressure oil system?

Are your batteries strong and topped-off?

Does your tach move slightly when cranking?

I would unplug the ICP and try to start again. It's a remote chance, but perhaps your new ICP is defective.

I would measure voltage at fuse 22 under the hood, and at the IPR harness - both with key on. Sorry, I don't know what the voltage at the IPR should read, but 22 should be battery voltage.

One of the two wires to the IPR will be a ground (obviously) - try to determine which. If you'll take that ground wire directly to the battery ground, you'll be applying maximum IPR pressure to the injectors. I would try to start it, and I would give it a small shot of ether.
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