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I am new to powerstrokes. I bought an 05 that had been bulletproofed about 5 years ago and shortly after he was driving it and it died wouldn’t start back and he parked it. Ficm showed 48.5volts icp was only 250psi ipr was 84.7%
I pulled ipr and it had a bad oring so i cleaned ipr and I replaced with new ones as well as a new screen. Put back together and still only get 250psi while cranking. I have 12 volts on red wire goin to ipr and I have fitting for air test ordered. Is there any way to test ipr before I buy a new one? Or am I chaseing the wrong issue? Thanks for all the help and sorry for long post.
 

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I would do the IPR test, if you’ve got it that far apart. Make sure you don’t have any leaks with injectors or the hpop.


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