I replaced a TCC solenoid and shortly after I reset the engine light I got a new P0743 code. I have purchased another lock up solenoid in case the wiring on the part is bad.

I only notice something odd happening when accelerating once in a while between 1-2 or 2-1.

very inconsistently it has a hard shift or a stutter.

I’m wondering if there was a polarity issue on the connector because it’s only 2 pins? I’ve also read people having to potentially replace the PCM?

has anyone resolved this one before?