2013 E 150 reprogam for gas instead of LPG

Chad Technician Georgia Posted   Latest   Edited  
Resolved
Programming
2013 Ford E-150 5.4L (L Flex) 4-spd (4R75E) — 1FTNS1EL3DDA91580
Needs Reprogramming

2013 E 150 was originally Lpg has been converted to gas but still has Lpg programming, Very hard to start, fuel trim codes, codes for missing sensors. When I try to program it as built it does not even show PCM as an option. It appears to be locked out. Any way around this? Vehicle was purchased like this we have recently figured out what was going on after talking to Roush who originally modified the vehicle.

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Mario Owner
California
Mario
 

I ran into this, so what I did was use a PCM from another similar vehicle and start the IDS session with that PCM plugged in. Then when IDS identified the vehicle and asked to confirm the vehicle I choose NO it was not the correct vehicle and then I proceeded to enter the correct ECM part number and plugged in the ROUSH ECM (hot swap) at the same time. IDS then went ahead and wrote the correct…

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Manuel Diagnostician
New Jersey
Manuel
 

Friend are you sure it is 5.4l?

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Nathan Owner/Technician
Colorado
Nathan
 

I just did this to a ‘14 F-150 the other day. When starting an IDS session, it said “incorrect PCM calibration programmed” or something. I just performed a key off program and entered tear tag number and it worked. What Mario said above may be required though I'm not sure.

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Manuel Diagnostician
New Jersey
Manuel
 

This is exact way

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Mario Owner
California
Mario
 

Per my experience, the Roush ECM is locked out and will not let you override the software thru any conventional procedures.

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Chris Technical Support Specialist
New York
Chris
   

When ID'd in fords software, select no, this vehicle does not match. The follow prompts to enter tear tag and it should force stock PCM calibration in the PCM. It will not change asbuilt or configuration, just the PCM operating software.

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Jordan Technician
Nevada
Jordan
 

Not sure this helps you, but I dealt with one where wires had been removed from the DLC connector. May be worth peaking under the dash at DLC.

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Chris Technical Support Specialist
New York
Chris
 

That would most likely be the FEPS wire to the PCM. Most of the CNG upfits I worked on had that wire snipped too. Forgot all about that.

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Helpful
Anthony Owner
New York
Anthony
 

We decommissioned several GM LPG vans over the years. They belonged to a gov't agency. CEL came on and attempted to reprogram to non-lpg vehicle. GM Suggested a new PCM but the agency decided to drive with the CEL on. They surplussed these things after a couple of years. Typical gov't waste at our cost.

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Chad Technician
Georgia
Chad Resolution
 

Most of you were correct, I was able to do the manual entry of the tear tag number without letting it identify the VIN and then it would allow as built programming. I was able to leave the original VIN which I thought it wouldn't but it worked fine. It's strange someone to the time to convert it back to gas and did a good job, they just didn't do the last step. Thanks for the help.

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Thanks