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7.3 Powerstroke ,97 start
Sorry for the long delay with this post.
It turns out the 97 F350 powerstroke diesel is not OBDII complient.
I ended up getting an Autoenginuity kit so I could read the sensors.
During start RPM was 150
Power was 12(ish)
Inj. Cntrl Press. (ICP) was 0.5. (0.85 needed to start)
I made up a hydraulic gauge connected to the engine pressure, was low..
Which means ICP sensor appears OK
Either IPR valve, a leak or the HPOP pump
Removed the IPR strip down clean replace, pressure still low.
Check wiring to IPR, checks out, 12v OK,
Removed the IPR again put the finger of a rubber glove over it
Replaced, pressure 500 ish and engine start.
Clearly an IPR problem.
I can at least drive to get a new IPR.
Hope my experience helps someone else here.
Thanks for the suggestions and help guys