Hello all, this is my first post. I have a 1998 Civic with an auto tranny and I can drive down the road and all the sudden it is like the transmission disappeared. it will rev but it is as if I am in neutral. I can take the 7.5 amp fuse out for 10 seconds and get it in limp mode and drove it home. I have tested the shift solenoid and the lock up solenoid and they are good, the last thing I did was replace the ECU. any other ideas?

 

Try changing the transmission fluid. Fill.....drive around for a bit, let it shift through all the gears. Then drain again. And do this process 3 times. You could probably just do it 2 times but 3 is more effective. And try using a sythethic oil. Thats all i can think of.. Last resort is pick and pull tranny. But once you do the process above or if you do it. Change your trans fluid sooner then whats recommend.