mengel

I got a PCM error code after a big rainstorm. So bad, that my vehicle wouldn’t start or turn over until I jumped it. Battery tested fine, starter is in good working order, and code thrown was P0685. I’ll cut to the chase. It shifts rough half the time, always a different circumstance and gear. I had it retuned because the stock tune felt like garbage (plus AFM sucks). The TCM relearns after the first 200 miles and does alright-ish. Then it’s like it just returns to crappy shifting, both up and downshifts. I’m worried the PCM and/or TCM might be toast since it’s not maintaining a consistent pattern. I’ll drive with foot applying pressure on the exact same roads, speeds, and circumstances but it’ll shift roughly randomly - again, no consistency or patterns, just random bs. Any help or advice would be greatly appreciated, thank you in advance