What to do with GDE PCM and tuner?

[StuartV]

I had a '21 Limited EcoDiesel. I was running a Green Diesel Engineering tuned PCM and transmission tune on it for the last 2.5 years or something like that.

I traded the truck in yesterday on a new '25 Limited (SST HO). Before I traded it in, I swapped the PCMs and put the stock PCM back in and restored the transmission tune back to the stock tune.

So, now I have this tuned PCM and transmission programmer sitting here.

I emailed GDE the other day to ask what I could do with them. Like, could someone else with the same truck use them?

It's been 3 days and they haven't responded. I guess I can understand that. They probably don't want people selling their stuff used. They want people to buy a new one, from GDE, not a used one from me.

So, does anybody have any idea if there is anything I can do with this PCM and tuner module?

I assume that the worst case would be selling them just for what they would be worth strictly as parts and then the person could pay GDE just for a tune, without having to buy the hard parts from GDE?

But, is there some reliable way to tell if someone else with a 3rd Gen ED could just plug and play this PCM?

 

[2021EcoDiesel]

To the best of my knowledge, the PCMs are written to a specific VIN and would have to be re programmed to the individual truck when purchased. I imagine there is a used market for PCMs so you could probably still get a couple bucks for it though.

 

[StuartV]

To the best of my knowledge, the PCMs are written to a specific VIN and would have to be re programmed to the individual truck when purchased. I imagine there is a used market for PCMs so you could probably still get a couple bucks for it though.

I thought I had read in the past that the PCM is programmed BASED on the VIN - not locked to the VIN.

I thought the VIN just allowed them to know exactly what modules the truck has in it, so they know how to program it. So, another truck with the same modules could use the same PCM.

But, obviously, that could be totally wrong.