I was sitting at a stoplight this afternoon and felt a random surge and thunk. The CEL came on and showed those two codes along with P0169 and P0300 which are most likely unrelated. The car drove fine into a parking lot so I cleared them and they didn't show up on the rest of my drive home, ~10 min with a couple of other stops with the engine off.
The only thing I notice that may be different is that it shifts softer from P to D, and low throttle 1st gear take off is smoother, everything else seems the same. So it broke itself into a better condition? Anything to be worried about? This tune has been on the car for a few months and this is the first time I've ever seen a trans code.
Tune attached.
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