Puke Dee Eye tuned 871 ecm, can't flash it to stock or connect at all.

[MattB]

Hi everyone, I'd like to pick everyone's brains on an issue I've ran into.

Customer of mine has a {Garbage} tuned ecm in his truck. (Poor mileage, smokey, truck is on its third rebuild)

I went to calterm to upload the file in the ecm, was able to connect to it once and pull the file. Unfortunately I'm unable to reconnect to the ecm to flash to stock.

Neither Insite or Calterm will identify the ecm.

Ecm is not rombooted. I used my boot cable and tried (just in case) to get it back online, but am having no success.

Is there anything I can do to recover this ecm?

I do have a trasdata and kess, if someone has a bin file for 871, I could try to flash that in. Just food for thought.

Thank you as always :)