I've been talking with Superchips Tech support because my tuner keeps going into recovery mode. The tuners data log/history says that it could not communicate with my tcm.

Anyone have any suggestions before I replace tcm or return tuner?
My truck runs and shifts fine, no obd codes, no Trans temp light. No dash lights at all. Trans temp light came on a few times months ago but has not came on since new engine. (I just put in a new remanded longblock last month) All electrical plugs were cleaned with electrical connection cleaner and reinstalled with dielectric grease during engine replace.
The tech support guy I talked was very understanding and did try everything he could to fix my problem. A+ for customer service
2005 4.7l 2wd auto

 

If the Superchips Tech cannot help, I doubt you'll find any additional info on the F5 programmer here. Most (probably all) of us are using the older Superchips 3865 or Cortex 3950 programmers. I wouldn't think replacing any parts is a better idea than returning the F5.

 

Can you tell me why does so many choose the older 3865 over the new 3845?

 

if your on facebook go check out flyin ryan page, dump superchips and get a sct tuner, so much better and with email tunes you will be much happier

 

That's what was available when we all bought our programmers.

 

I will probably go with flyin Ryan but still don't understand what would cause superchips to not be able to communicate with my tcm but work fine on 2 other trucks.