Throttle Position Sensor? on 1994 Lexus SC300

I just replaced the mass air flow sensor which made my car run smooth...except when I give it just a little throttle. It chugs for a few seconds and dies. Also the shift points in the transmission are screwed up. Anyone know if the throttle position sensor could be the culprit?

1 answer 3 comments
WHAT ARE YOUR CODES IF YOU HAVE ANY?
Not sure. Don't have a way to check them.
GO TO AUTO ZONE THEY WILL CK FOR FREE
Okay thanks.