On my auto tranny 90 teg when driving it shifts from first to second fine. as it gets ready to shift from 2nd to 3rd instead of shifting it just keeps going until you let go of the gas pedal and let the rpm drop til about 2500 then it decides to shift. Has any one ever had the problem? If any body has any ideas please help. I’ve tried the Vac Mod Valve but no luck.
my brothers '82 accord did that! we just drove it that way forever cause we didnt feel like getting a new tranny for it! As an auto car gets old the higher rpm it takes for it to shift to the next gear and eventually it will fry! but anyways 2nd to 3rd is a major culprit cause it like to stick! i have no idea if there is a way to fix it now-a-days but my bros '82 was said to need a new tranny to fix it or get it rebuilt!
you could try changing the tranny fluid, if that doesn’t work im sorry but your tranny is going bye bye 
mine did that and then finally every gear was like neutral it’d just rev. now it’s a 5 speed and waaaayyyy better