i have a 90 civic lx AT that won't start most of the time especially when the temp is hot. sometimes it taks a few cranks. when i check for sparks, sometime it'll have spark and sometimes it doesn't, but it still doesn't start. after you let it cool (about 30mins), it would start again, having sparks. usually i just wait for a few seconds then it would restart again, but now it's getting worst. if you drive it for a long time (1-2 hours), it will sound like it's going to stall when you stop, and it did twice (i have to rev a little). has no cel. i got new dist cap, wires and plugs before it started getting worst. 50 amp ign fuse is black but still connects. i might buy a ign coil but not sure if it's the problem. need some advise. thanks.

 

search "main relay"

 

its your main relay doin that to you i work at a honda dealership and that is really common so just replace that and you will be fine

 

where is the main relay located, and what does it look like?

 

could it be the main relay because sometimes i don't have spark also. i can also smell the gas if i crank the engine a lot.