IPR Problems

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Feb 5, 2016 | 07:55 PM

hunter99992008

Thread Starter

New User

Joined: Feb 2016

Posts: 1

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IPR Problems

Hi Guys

I'm Hunter and I just joined the form.
I've got a problem I just can't solve on my truck.

I've got a 1996 Ford F-Super Duty 7.3 Powerstroke 5 Speed 12 foot bed.
So it had stalling and dieing problems then one day crank but no start so put it in the shop and replaced/performed:
2 new battery's
New Fuel filter
New rebuildt bowel
New starter
New CPS
New IPR and coil and pigtail
Took the engine wiring harness out checked every sensor back to the 42 pin plug all good fixed a couple of chafes fixing to rewrap if soon.
Swapped ICMs from matching truck shows to be good.
RPM moves when cranking.
Have a WTS light.
Scanner shows PO605 IPR Circuit.
Ok so the truck will start if I send 12 volts jumped off the battery to the IPR. But the IPR pigtail has 12v coming from the computer?? And the IPR relay clicks and has been replaced.

I'm am so stumped have been working on this thing for days some advice would be greatly appreciated.

Feb 6, 2016 | 08:51 AM

Lead Head

Lead Driver

Joined: Jul 2007

Posts: 7,868

Likes: 9

From: Rhode Island

Hi, I'd try posting this in the 1994.5-1997 PowerStroke section a little further down on the site! You'll get a lot more help there!

Feb 6, 2016 | 11:09 AM

Briansshop

Fleet Mechanic

Joined: Aug 2005

Posts: 1,277

Likes: 89

From: MD

If I rem correctly, the IPR gets 12v on start/run, and the pcm controls the duty on it through a PWM ground. Had no rail press on mine,no start. Bad PCM.