About a year ago my 08 mazda 3 with AT transmission started going into limp mode and not switching out of 3rd gear.Usually I could turn the car on and off and it would clear itself out and drive fine for awhile After reading online, I purchased a new ECM & TCM. Most of the tutorials showed just the TCM being replaced but I guess my car has the TCM as part of the ECM. Anyway, I flashed the new computer to my VIN and everything has been great for the past 5 months. Unfortunately its back! Im doubting the TCM is bad again, but I could be wrong. I have FORSCAN and it is showing codes
p0734
p0661
p0766-ff
p0766-c
u2064-ff

Unfortunately as soon as I reset the PCM in FORSCAN the AT light and check engine pop right back up.. Tranny fluid looked low so I put some fresh in and topped it off. no change, Still in limp mode. Not sure where to start looking now. I guess its possible that the shift solenoids all failed but I doubt it. anyone have this problem so soon after putting in a new ECM/TCM?