Motor stalls after hours of driving, Code P008A

[DirtRipper22]

Snappy - tends to round and drop the decimal places, also note the voltage reading is not listed on the Ford (Typical) PID charts and it is a reference to the duty cycle.

The PID charts do show - Typical Duty - Pressure
Idle - 23% - 69.47 PSI
30 MPH - 24% - 69.33 PSI
50 MPH - 25% - 70.49 PSI

Now I have not run a Live Data - (Drive- Under Loads) but when we bring in the - Duty Cycle (PID) and the OPs (Duty Cycle) at Idle & 3K - we can see that the LP Pump is being commanded (On) percentage longer (32%) to maintain the desired pressure, I think the desired pressure on his post is actually slightly bumped (up) as its being commanded to (compensate) for the low pressure output.
Meaning that the module is using the FRP as a primary and using that data to set the (Desired) it then commands the duty cycle LP Pump - to maintain or satisfy the FRP.

I would have to dig some on this, but I would say that the LP Pump duty cycle (Normal) should stay around 25% and anything higher would indicate that the pump is being commanded (On-Time) longer to keep or satisfy the FRP - feedback to the PCM

So if we only see or use his (Duty Cycle) as a ref of pump pressure, then the pump is working harder to maintain simple (idle) pressure

I need to do some research to confirm - the operation and duty cycle (control), but I think this is how the system operates and I can only confirm (normal) at idle readings from my scan tool samples - which I took samples of all PIDs as a reference to T-Shoot, I have a reference to (ALL) PIDs @ Idle and some I have Drive (Data) under Loads, but the fuel pump (Not Yet)

Woah! Thats wild! Would be a good indicator to catch a failing fuel pump before it completely crashes. This is something i will look for on live scans now. Considering i do lots of long trips, and put on 30k+ miles a year. I really should get a ling range fuel tank. But until then, with the workload i out on these pumps, i will keep an eye on that duty cycle. Would like to see if I can get a read on that PID first.

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[DirtRipper22]

****Update****

Throwing parts at it;

Well fellas, got a new fuel pump in there. Was easy enough to do. Just had to wait a week for it to showup through shipping.

What do yall think? Could she use a little more dirt? I think I dropped about 100lbs of gravel that was caught up in between the skid plate, side shield, and on top of the tank itself.

I checked all the wire connections, including the ones on the main harness. All clean. All intact. No fried pins. No damage. No corrosion. Also, ground wire by the fuel pump module plug is properly affixed.

Taking the truck out again this Thursday/Friday and going to be running it for hours again to see if the problem persists with the new fuel pump. I will keep ya'll posted!

 

[DirtRipper22]

*****Final Results*****

Okay so after taking it for a long multi day drive out on a desert offroading trip and not having anymore stalling issues or codes pop up, it was indeed the fuel pump that was failing. New pump was the solution. She's running in top shape again after the new fuel pump was installed.

I also finally had time to confirm Airline Techs theory, and just like Ranger Bill discovered, the missing PID in Forscan was indeed just an issue with an outdated vehicle profile. After deleting the profile of my truck off Forscan and rescanning for a new profile, I was able to see new PID's available. Including the missing FLPA PID I was originally looking for!

It did not prompt me with a year selection window like Ranger Bill mentioned, I was only prompted with the default 2022 vehicle profile that the scanner picked up. See in this screenshot:

But after reloading a new profile, I got the PID needed for the actual pressure. And a quick key word search for 'fuel' brought it up. Thank you so much guys!

 

[RangerBill]

*****Final Results*****

Okay so after taking it for a long multi day drive out on a desert offroading trip and not having anymore stalling issues or codes pop up, it was indeed the fuel pump that was failing. New pump was the solution. She's running in top shape again after the new fuel pump was installed.

I also finally had time to confirm Airline Techs theory, and just like Ranger Bill discovered, the missing PID in Forscan was indeed just an issue with an outdated vehicle profile. After deleting the profile of my truck off Forscan and rescanning for a new profile, I was able to see new PID's available. Including the missing FLPA PID I was originally looking for!

It did not prompt me with a year selection window like Ranger Bill mentioned, I was only prompted with the default 2022 vehicle profile that the scanner picked up. See in this screenshot:

But after reloading a new profile, I got the PID needed for the actual pressure. And a quick key word search for 'fuel' brought it up. Thank you so much guys!

Good to hear that all is well.

 

[got3fords]

*****Final Results*****

Okay so after taking it for a long multi day drive out on a desert offroading trip and not having anymore stalling issues or codes pop up, it was indeed the fuel pump that was failing. New pump was the solution. She's running in top shape again after the new fuel pump was installed.

I also finally had time to confirm Airline Techs theory, and just like Ranger Bill discovered, the missing PID in Forscan was indeed just an issue with an outdated vehicle profile. After deleting the profile of my truck off Forscan and rescanning for a new profile, I was able to see new PID's available. Including the missing FLPA PID I was originally looking for!

It did not prompt me with a year selection window like Ranger Bill mentioned, I was only prompted with the default 2022 vehicle profile that the scanner picked up. See in this screenshot:

But after reloading a new profile, I got the PID needed for the actual pressure. And a quick key word search for 'fuel' brought it up. Thank you so much guys!

Wow, that is a failure I don't think I have ever seen on a 5G. Hopefully this won't be a trend. But I'm in a 6G now, and even so, all this info is good to know.

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