Dies after startup.

[steveko]

I too have this issue but it's only when it's cold or first being started. It will die the first time then on the second crank it will start and stay running. This may be the problem but not sure theres not enough fuel getting too the carb I looked at my fuel filter which is clear glass replaceable filter. There is a dry run for a few seconds until it primes itself again. Could the fuel cut off switch be defective? And is it supposed supply power too the fuel pump upon turning the key but not cranking it.

[russiankid]

I had this same problem. It happened to be my fuel pump going out. I replaced the fuel pump and the problem went away.

[steveko]

I don't believe it's the fuel pump because it was replaced less then 2 years ago. Looking at the filter when I turn the key too the on position. I don't see any gas going into it.I thought someone in one of the threads., said,that the pump should run for like 3secs in the run position when the key is first turned on.

[coope]

check the relay

[88Accord-DX]

Not sure what model you have, but you can never fail by taking the line off to the fuel rail or carb, & see if your fuel pump is working. Problem is, without a fuel pressure tester. You need to measure the volume of fuel coming out in a certain amount of time.

[russiankid]

Not sure what model you have, but you can never fail by taking the line off to the fuel rail or carb off & see if your fuel pump is working. Problem is, without a fuel pressure regulator, you need to measure the volume of fuel coming out in a certain amount of time.

He could also have a leaking hose somewhere, causing the fuel to drain back.

[cubert]

I don't believe it's the fuel pump because it was replaced less then 2 years ago. Looking at the filter when I turn the key too the on position. I don't see any gas going into it.I thought someone in one of the threads., said,that the pump should run for like 3secs in the run position when the key is first turned on.

How many miles have been put on the car in those two years? If it was a cheapy pump it may have failed prematurely

[88Accord-DX]

He could also have a leaking hose somewhere, causing the fuel to drain back.

Most likely with leaking hoses, it will be evident. It's all about testing the voltage to the fuel pump first, then checking pressure & volume.

[russiankid]

Most likely with leaking hoses, it will be evident. It's all about testing the voltage to the fuel pump first, then checking pressure & volume.

True, but the fuel hose that comes from the firewall to the carb, on mine it was cracked but i did not find any gas leaking or any gas smells. I noticed it when i changed the filter.

[steveko]

It' funny when I sit back and see the responses from everyone.It takes on a life of it's own.But too answer a few of you're questions.1st fuel pump is from Honda exclusively.
2nd I've checked the fuel pressure it's at 2.5psi.with the key on and relay jumped out.
3rd the fuel filter in the motor compartment is a clear glass replacable filter type. See original post.4th Yes I will check the relay. Oh by the way it's a 88Lx accord.

[russiankid]

Does the car run rough at the first start up? Or does it start fine, jump to around 2500rpm and then just die?

[carotman]

Mine does the same thing

If you pres on the gas while it's running on the 1st crank, does it still dies or it can catch up and keep running?

[steveko]

Yes, now that you mention it russiankid. I'll pump the gas 2 times letting the pedal up slow after that 2nd pump.Crank it over it runs mabey 5sec then shuts off. Then without pumping the gas I'll crank it and it will run rough as you said until starts too slowly raise too about 2000rpm then it will drop down when fully warmed too idle about 800rpms.
Oh by the way carotman it does die if I do as you say.

[russiankid]

I remember i had a problem with the slow choke heater making the car run rough when first started up. It wouldn't stall, but that could be your problem.

[steveko]

I'll have too check the choke coil heater out this weekend.

Thanks, steveko.

[carotman]

Check the float level in the morning if you can. The float bowl might be too low and the pump just doesn't keep up when you start it.

[steveko]

I don't believe it's the float level like I said earlier the fuel filter runs dry the first start then catchs up on second start and stays running low Idle at first then works it's way up too 2000rpm mabey lower. I might have too bring the fast idle up a little higher. So it catchs on the cam and stays there.

[steveko]

Update,I was looking at the fuel filter and it wasn't dry like I thought,so it may be the float bowl is low as mentioned. But I'll still have too bring the fast idle up.

[steveko]

Hey, carotman You're guess I think was right on about the floatbowl level in the morning being low. Where is the gas going evaporating through the vents? I raised the float level slightly hopefully this works. Sorry for the delayed response.

[steveko]

Update still dies after initial start.Float bowl does look low after this initial start. Any ideas,anyone?This is why I have other posts asking about the ignition coil.

[carotman]

The ignition coil is what will supply the pulses for the fuel cutoff relay.

This might be related indeed.

[steveko]

Hey,good too here from you again. I'm actually trying too describe this too lostforawhile on the technical page about voltage at the control unit terminal #11 under the seat.

[2oodoor]

have a look at this thread link, sounds identical. Hope it helps.
https://www.3geez.com/forum/showthrea...light=bowl+low

[steveko]

Great find, is that the Air Vent Cut off Diaphram you're referring too.

[A20A1]

those glass filters can leak at the ends by the rubber, it may not be that noticeable at first.
I ended up replacing mine with a FRAM clear plastic filter meant for domestic carburetted motors.