My cars throwing a CEL 30 and i searched and i didnt come up with anything. Anyone have any idea. Its a 1990 Accord, auto. Thanks..

 

any other symptoms? Trans not shifting right? Trans will shift manually? I've seen lots of those trans control units fail in the past few years.

 

ok got to drive the car today for the first time. I couldnt jump the plug and get the code because the Check light doesnt stay on, when i shut the car off you have to start it then it comes on about 10 seconds later. i pulled the carpet back and watched the flashes on the ecu and the Cel it is throwing is a code 30, A/T FI signal A? The car shifts rough and when i give it alot of gas it goes to downshift but misses and revs high then catches? Is this a sensor or something more serious??