quit - IPR?
Thread Starter
|
Junior User
Joined: Oct 2008
Posts: 79
Likes: 0
quit - IPR?
My truck was idling in front of the house and quit like the key was turned off. No start. Scanned, no codes. KOEO test yielded P1283, IPR circuit fault. Inj. buzz test OK. Seems an amazing continuation of bad luck, after a long bout with a no start due to UVC connector problems, and then fuel in the rad. Is there a common cause with P1283?
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
Agreed, but if you're real lucky just the solenoid.
Posting Guru
Joined: Apr 2009
Posts: 2,447
Likes: 1
From: Northern Idaho
If you have a chip then start the vehicle and wiggle the chip a bit. This happen to me (not exactly the same way) when my chip carbon'd up a bit. If that is the case then pull the computer (easy to do), open the case, clean the contacts and put some electronic vaseline on each individual contact (do not smear from one contact to another to avoid a short).
That fixed me up quite well.
That fixed me up quite well.
Thread Starter
|
Junior User
Joined: Oct 2008
Posts: 79
Likes: 0
I couldn't find my ohmeter right away this morning to check the IPR wiring - everything looked OK, so I cranked and it fired right up. Ran awhile OK, warmed up. I shut off but later wouldn't start again. ??? What could this be, seems to be OK cold, but after warm up it doesn't want to run. Do these IPRs sometimes go bad due to heat?
Posting Guru
Joined: Apr 2009
Posts: 2,447
Likes: 1
From: Northern Idaho
OK. Do you know where the IPR is?
If you do then unplug it after it warms up as this will cause the computer to trip, turn on the check engine light but go into a safety mode but it should still run. Mine does.
If you don't know where it is at then look for a stub with and electrical connection plugged into it on top of the motor. Driver's side, above the valve covers and fairly close to the HPOP (High Pressure Oil Pump).
Give this a shot, let's see what happens.
If you do then unplug it after it warms up as this will cause the computer to trip, turn on the check engine light but go into a safety mode but it should still run. Mine does.
If you don't know where it is at then look for a stub with and electrical connection plugged into it on top of the motor. Driver's side, above the valve covers and fairly close to the HPOP (High Pressure Oil Pump).
Give this a shot, let's see what happens.
Thread Starter
|
Junior User
Joined: Oct 2008
Posts: 79
Likes: 0
I think what you mean is the ICP sensor. If it is unplugged, the computer defaults to an assumed value of HPOP pressure, but the engine will still run. The IPR is very hard to get at under the fuel filter bowl. If the IPR is unplugged or the wiring is bad the computer senses the fault and won't allow the engine to run. The IPR is a PCM output - a coil that is pulsed to regulate HPOP pressure. I was wondering if these units, being a coil, commonly fail due to heat.
Trending Topics
Posting Guru
Joined: Apr 2009
Posts: 2,447
Likes: 1
From: Northern Idaho
Oh, yea, sorry, still learning things about these sweet motors.
But the IPR is a possibility,. I wonder how much they are to change.
But the IPR is a possibility,. I wonder how much they are to change.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
samturret
1994.5 - 1997 7.3L Power Stroke Diesel
18
Apr 11, 2017 10:36 AM
str8jacket104
1999 - 2016 Super Duty
1
Mar 23, 2017 09:14 AM
