I have a 96 civic with an obd1 b18c. when the water temp is cold the car runs fine, but as soon as the water temp gets to normal operating temp. it starts to bog down anywhere between 2500 rpm and 4000 rpm. anything over 4000 rpm it runs fine. it mainly happens at a cruise speed when i go to pick up the throttle a little bit it will bog down but if i give the throttle a little shot of gas it pulls out of it, it is also an intermittent problem. it comes and goes. last night i drove it home from work which is about 10 km and it ran like **** the whole way but after i let it sit for about 45 minutes i drove out to my girlfriends which is about 15 km and it ran fine the whole way. it also sometimes happens from a stop when pulling away but only once in awhile it mainly happens while cruising. I have replaced cap, rotor plugs, wires, fuel filter. and it does not have any codes

 

bump for an answer... having the same problem...

 

Check connections of components in the distributor, [ICU, coil]. 94

 

It could be ur fuel pump
it will run good idling
or low rpms
but once rpms go up it cant send enough gas