Codes P2196, P0068
First unsteady idle, check engine light on, now good idle shifts very hard; AOD on 2003 Ford Ranger
Suspect throttle position sensor out of range!! Also inspect mass air flow sensor/meter for ANY debris inside!! TPS plays a BIG role in trans. shift as well as idle. Be sure to check for trash inside of the air intake system that may interfere with the MAF sensor, even a tiny bit of junk can cause trouble!