i have a 91 integra ls and all of a sudden one day when i was driving it...it just shut down i feel like its something to do with the fuel...my injectors work, my fuel pump works as well, and all i can think of is that it might be a relay but i dunno which one?

 

check for spark, pull plug and get somone to turn over car
if you have spark, pull off intake, spray carb cleaner into intake manifold while someone is cranking over engine, if its a fuel problem , the car will run on carb cleaner and stall out soon after you stop spraying in carb cleaner.

 

i have spark yeah it runs on the carb cleaner until the carb cleaner i put in burns then it turns off

 

defiently fuel starvation. if you have injector nodes , check injectors for pulse, also check fuel pressure if you have fuel pressure gauge.

 

Main Fuel Relay, common problem, search and see.

 

where is the main fuel relay located?