Hi if anyone can help thanks in advanced. My bone stock 1992 integra ls won't start. Fuel pump and fuel pump relay have been changed and no fuses are blown. Fuel pump primes when ignition is turned to start. There is spark at all 4 spark plugs but i think no fuel is getting to the cylinders. After cranking the engine the plugs aren't flooded so i removed feed line at the fuel filter and it was pretty dry. Anyone have an idea what it can be? I think it's fuel related but i can't pin point it. Do you think it might be the ecu (it's stock)? My 95 integra had a similar problem and it turned out to be the ecu (an aem ems) I haven't checked for any codes yet, i'll try to do that tomorrow.

Thanks

 

check the fuel pressure at the rail and go from there

 

no fuel pressure at the rail. still have spark, i can hear the fuel pump prime and relay click on but still no start. i've searched and cam up with an emergency fuel cut-off switch in case of car accidents. does anyone know anything about this? some people say it's located at the trunk, others say it's on top of the fuel tank. others say there's a check valve for the fuel somewhere. has anyone heard of this. still haven't had time to check for codes.

 

i ironically had the same problem took me a few days to figure it out ... i removed the MAIN relay in the car opened it up looked at the circuit bored well needless to say it was dirty with old soder resin so i used oven clener on the soder side of the circuit bored NOT lots just a few drops and scrubbed it clean popped it into my teg and it fired up first try
try that out before dumpin money into a new main relay
saved me money

 

Thanks for the reply, found the problem, both the main relay and pump went to crap, new fuel pump primed but no pressure, manufacturer of pump swapped positive and negative terminals with the wires, swapped wires after dropping the tank again, no the car starts with no issues.