DPC-422 PCM Compatibility
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4wd Low
Joined: Dec 2020
Posts: 13
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DPC-422 PCM Compatibility
I made the dreaded mistake of frying my PCM while running some wires under the dash and pulled the chip out accidentally while the key was in the ignition. I don't have the wait to start light so assuming she is fried pie. My PCM is a DPC-422 from an 01 7.3 4x4 truck.
I have looked online and found repair services for 150, replacements for 475. I would love to find a used unit for a cheaper price if possible but need to know what models will work with the original 422 PCM. Lots of info on the site but hard to decipher some of it. ANY help would be appreciated!
I have looked online and found repair services for 150, replacements for 475. I would love to find a used unit for a cheaper price if possible but need to know what models will work with the original 422 PCM. Lots of info on the site but hard to decipher some of it. ANY help would be appreciated!
Postmaster
Joined: Nov 2015
Posts: 4,807
Likes: 125
From: Colorado Springs
I made the dreaded mistake of frying my PCM while running some wires under the dash and pulled the chip out accidentally while the key was in the ignition. I don't have the wait to start light so assuming she is fried pie. My PCM is a DPC-422 from an 01 7.3 4x4 truck.
I have looked online and found repair services for 150, replacements for 475. I would love to find a used unit for a cheaper price if possible but need to know what models will work with the original 422 PCM. Lots of info on the site but hard to decipher some of it. ANY help would be appreciated!
I have looked online and found repair services for 150, replacements for 475. I would love to find a used unit for a cheaper price if possible but need to know what models will work with the original 422 PCM. Lots of info on the site but hard to decipher some of it. ANY help would be appreciated!
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4wd Low
Joined: Dec 2020
Posts: 13
Likes: 0
Unfortunately, the fuse is still good to go. I know when the incident occurred and it was the chip being pulled out while the key was in the ignition 
I will definitely call DTC if I can not find a used unit. At the moment 200 is a lot easier on me than 500 for the PCM but I may have no choice.
I will definitely call DTC if I can not find a used unit. At the moment 200 is a lot easier on me than 500 for the PCM but I may have no choice.
Laughing Gas
Joined: May 2007
Posts: 793
Likes: 29
Another under $400 option is car-parts<dot> for a used unit.
The computer appears under the parts drop-down as 'Engine Computer'. Next it will show a list of all potential computers where "Electronic Control Module, (LH firewall), 8-445 (7.3L, diesel), injection control, ID XC3F-12B599-AD" looks like it is for our trucks with the AD (and AE) injectors. When calling about the part, just ask for details of the donor vehicle and to also make sure that the transmission matches what you have.
The computer appears under the parts drop-down as 'Engine Computer'. Next it will show a list of all potential computers where "Electronic Control Module, (LH firewall), 8-445 (7.3L, diesel), injection control, ID XC3F-12B599-AD" looks like it is for our trucks with the AD (and AE) injectors. When calling about the part, just ask for details of the donor vehicle and to also make sure that the transmission matches what you have.
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