i need help, i have a 93 lx with 5.0 5spd. for the most part stock. after it warms up when i hit 4000 rpm it misses and sputters. only after at operating temp. when its cold it runs like a dream. i replaced the dist and mod with used of a running car and also plugs wires cap rotor and coil. any help would be great. if im sittiing still and rev it up it misses all the same as if im driving.

 

Check codes.

 

check the ect i've seen them read a little off anf screw things up at temp and rpm

 

the codes i got are 67 31 that is koeo and 94 44 they are koer