hey need some help here, ive got a 92 accord and recently the transmission (auto) will not shift into 4th, it will stay in 3rd for a long while. I ran in till it was warm and shifted manually several times and finally was able to get 4th, from there i was able to shift 3 to 4 and back sucessfully several times and the car would shift fine from a start all the way to 4th gear. figured it was fixed. but after it cooled off and restarted, I have the same problem, any clues how to get into self diagnostic for the tranny? and what the codes would mean? I dont think its purely mechanical but most likely a sticking shift solenoid or such just are not sure which one is controlling which shift etc. any help would be great , bob