OK so I have an automatic 1994 accord LX. The car starts and runs fine but won't shift into gears all the time. It will just stay in neutral. If I put it in drive there is a chance that it will work and it will stay in the gear until it shifts (if it shifts into gear) and then it has a chance to just sit in neutral. If I turn the car off and back on it will sometimes go into gear and sometimes not. Turning it off and back on seems to help. Any suggestions? ECU? Anyway I can check if it's the ECU before I buy a new one? It has 120k miles.