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Not actually a new user- I signed up in 2005 but apparently no longer have access to the email for that account – user TimHixson.
Vehicle – 2001 F350 srw cc 4x4 automatic 236k miles owned 16 years
Problem – Driving on interstate – check engine light came on and engine lost power. Engine stalled exiting highway and would not restart. Towed it home.
I ran codes and found the IDM had codes as well as HPOP pressure. I replaced the IDM – still no start. Replaced the IPR (cheap aftermarket one) and truck started but ran very badly and still had IDM codes. Replaced both valve cover gaskets as one appeared to be coming apart. I also replaced #1 injector as it was not oiling and had no change to engine when unplugged while running.
Truck now runs very nice, but throws code P1211 after about 10 minutes of driving.
Please take a look at the attached datalog pictures from forscan and see if you see what is out of line. It kind of looks like the HPOP pressure is slightly low and that is what the code reads. How do I resolve this?
My next course of action if I were you would be to return the cheap aftermarket IPR, purchase a Motorcraft IPR and go from there. Major system sensors like the IPR are known to be finicky on the 7.3L.
If you go to your Ford dealer for the IPR, see if they will price match someplace like Riffraff, Bitterroot or Diesel-O-Rings. We are seeing an incredible amount of counterfeit parts coming from eBay and Amazon, so be cautious.
I have a used oem ipr off a truck, it was working fine, but I installed a new one while I had my buddies hpop out for a non servicable plug replacement. It had 238,000 miles, not known if original, suspect it is. Worked perfectly fine.
Yours free if you want it, get a cheap reseal kit and you will have a good oem ipr to rule out that from your issue.
I hate to be "that guy" but I might be this time. I thought I did my research and read every thread in this section on the code I am getting. I went back and read some again and found where someone noted that the coolant was dark and it was due to injector cups or o-rings. I just looked and my coolant looks pretty dark. I believe I am going to replace all the cups and injector o-rings as the next thing. Also going to do a coolant flush and replace the radiator hoses while I am at it.
to answer the above comments ...
Fresh oil change - 15/40 Rotella t4 with a Wix filter and hot shots stiction eliminator
the fuel pressure is 60 at idle and mid 50 under load
truck is bone stock except for the napa 6637 style k&n filter
that PID excel file seems really great, easy to use and does its job well
I have a used oem ipr off a truck, it was working fine, but I installed a new one while I had my buddies hpop out for a non servicable plug replacement. It had 238,000 miles, not known if original, suspect it is. Worked perfectly fine.
Yours free if you want it, get a cheap reseal kit and you will have a good oem ipr to rule out that from your issue.
Thank You I would love to have one to trouble shoot with. Ill send you a PM
Agree with Sous, it looks like the IPR is misbehaving. From your reallog3 data, IPR is starting out high at 25% at idle on a cold engine, yet ICP is at a normal-for-cold-engine 626 psi.
Under moderate acceleration, MFDES is normal at 35%, yet the PCM is commanding the IPR to 45%, to get the normal 2281psi ICP for that fueling level.
You could try this same run with the ICP disconnected, and see how the PCM commands IPR%, just in case the ICP is off.
How does the fuel filter look? Is it black, pointing to possible o-ring leaks?
Agree with Sous, it looks like the IPR is misbehaving. From your reallog3 data, IPR is starting out high at 25% at idle on a cold engine, yet ICP is at a normal-for-cold-engine 626 psi.
Under moderate acceleration, MFDES is normal at 35%, yet the PCM is commanding the IPR to 45%, to get the normal 2281psi ICP for that fueling level.
You could try this same run with the ICP disconnected, and see how the PCM commands IPR%, just in case the ICP is off.
How does the fuel filter look? Is it black, pointing to possible o-ring leaks?
Fuel filter is brand new also. I put in the napa one where the filter and cap are one part.
tomorrow ill unpluk the ICP sensor and get a new log.
Also that last picture in my first post look at the ECT values. those are some pretty high sub zero temps. Is that right?
ECT will not read on an automatic truck, so you can ignore that PID. Also, recommend changing the units on MGP (boost) to PSI so they will show up correctly on the chart.
Will look for pmI have to run to post office tomorrow so I can get it out then if you like.
I do not think the site will let me have private messages yet as it sees me as a new user. Please email timothyhixson@hotmail.com. Ill be happy to pay whatever.
Some new info this morning. I am embarrassed to post the coolant tank picture, but that pretty much guarantees I have injector cup/o-ring issues.
I am unable to change the MGP setting to psi. there is only one in the listing to use. Please advise if I am screwing up here.
SOOO...I unplugged the ICP sensor this morning and the truck will NOT start at all. I also plugged it back in and started the truck. I tried unplugging it while engine running and it dies immediately. I believe that tells me the IPR is not getting it done. If the truck is in limp mode setting on the ICP/IPR request and it is not opening enough to send the proper amount of pressure to the injectors then the IPR is faulty correct? (or I have a huge leak someplace)
Is that oil in your coolant?
more suspect oil cooler if so. Cups usually put fuel in coolant not oil
I forget, do cups seal against coolant passages? I thought they only seal against HP oil and fuel passages. I agree that oil in coolant is probably the oil cooler.
I forget, do cups seal against coolant passages? I thought they only seal against HP oil and fuel passages. I agree that oil is coolant is probably the oil cooler.
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