1994 integra b18b1 bone stock. Main relay replaced, new cap, rotor, plugs wires, injectors cleaned.
I can start it first thing in the morning, but after that it needs to sit at least 6 hrs before it will start again. Couple of days ago I ran into a situation where I was basically broken down. I tried unhooking the wiring harness at the fuel pump and it starts right up but dies as soon as it runs out of pressure. For the time being I have installed a switch off of the main relay so i don't have to reach back and unplug and plug the wiring harness at the fuel tank. What is going on here. I am guessing that I am getting too much fuel. I put a fuel pressure test to the entire system and everything came out within spec. Has anyone seen this? Not to mention if I am forced to use the cut off the car runs like s**t for a bit. Thank you.

 

Anyone there??

 

what fuel tests did you perform? also check for continuity between the main relay and the fuel pump.

 

I tested pressure through the fuel filter, through the fuel rail. And I did test @ the main relay, I don't remember numbers at the moment but it electricaly it seems to be ok. I also checked continuity through the injectors. It seems that its flooding out some how. Is there any way to check for bent valve while the head is still on?

 

how is there a possibility of a bent valve? if you had a bent valve you could hear it even without taking anything apart...do a compression test to see what your numbers are across the board

 

I don't know how the possibility of a bent valve thats why Im asking. I did a compression test a while back they all came back 137-135 PSI.

 

It sounds like you have a bad fuel pump. They are fairly cheap, try replacing it.

 

If you're flooding out in one cylinder, it's likely an open circuit in your injector harness, or an injector is stuck open. Run appropriate tests.

If you're flooding out in all cylinders, verify your fuel pressure regulator is working correctly.

Again, look for other shorts. It's very possible your ECU isn't communicating to your fuel system properly.

THEN try replacing your pump.

 

try a power balance test to check if youre inj are faulty.

 

How do I test my fuel pressure reg.? As far as the inj go I other that sticking a stethiscope up to each one how can I check them?

 

Pull out the rail with the injectors still in tact and have someone turn it over. If any of them spray continuously, either the injector(s) clogged up or there's an open circuit.
**be extremely careful if you decide to do that, and lay down a rag to absorb the spray.

The regulator is a vacuum-controlled diaphragm, it responds to high manifold vacuum (closed throttle) to drop the rail pressure. Fit a pressure gauge anywhere before the regulator to monitor your pressure at the rail.
Turn it over with the throttle closed, and document the reading. Then turn it over at full throttle; the pressure should be noticeably higher. If it's at the same pressure (high) all the time, it's probably toast, and that *might* explain the flooding.

But as I emphasized, my instinct points toward an electrical fault.