You ever find out your the problem? I have an automatic 2001 Protege with a 0733 code. I'm having problems with 1st though. Car takes a bit to get into first in the morning. When it does engage, it's a hard jerk. Then the car jerks occasionally when coming to a stop or pulls out of 1st . I have to drop it down to D1, to slightly rev it into gear.I have a 99 protege. it does not want to go into first gear.. once it does it runs great but I have to rev the engine for a bit or wait with it in drive for a minute or so and it shifts hard into gear and occasionally turns on the OD light..
any suggestions would be much appreciated