My 91 ef hatch Dx starts up great but when I drive it in just shuts off within 10min and if I wait 10sec it will start right up and do the same thing and the ideling goes up and down when I'm at a stop light need help I just replaced the disbutour and cap brand new and now just bought a main relay waiting to get it to put in in

Even though you replaced the distributor, it sounds like the Ignition Control Module and/or coil may be bad. Here's how to replace them:

https://www.askmehelpdesk.com/cars-t...tml#post265896

We have had many new aftermarket distributors fail.

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Originally Posted by toastinEf

my 91 ef hatch Dx starts up great but when i drive it in just shuts off within 10min and if i wait 10sec it will start right up and do the same thing and the ideling goes up and down when im at a stop light need help i just replaced the disbutour and cap brand new and now just bought a main relay waitin to get it to put in in

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I had a used distributor in there and it started doing it so I went out and bought a new one put it in still does it so I'm waiting for my main relay put still don't know what to do about the ideling injector cleaner?

We have had many, many new aftermarket distributors not work in Hondas. I only recommend genuine Honda distributors, from experience. If the problem persists, after replacing the main relay, keep this in mind.

Here's a recent example:

https://www.askmehelpdesk.com/cars-t...ml#post1413520

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Originally Posted by txgreasemonkey

Even though you replaced the distributor, it sounds like the Ignition Control Module and/or coil may be bad. Here's how to replace them:

https://www.askmehelpdesk.com/cars-t...tml#post265896

We have had many new aftermarket distributors fail.

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do you think the fuel pump should be changed if the main relay doesn't work

No. I've never seen a bad Honda fuel pump, even though many people unnecessarily replace them. If the main relay doesn't work, check all underdash and underhood fuses with a test light or multimeter. Also, perform the K-Test on the ECM, if the CEL stays on.

If you are having fuel system problems, this link should help:

https://www.askmehelpdesk.com/cars-t...ml#post1245523

[QUOTE=txgreasemonkey;1581351]No. I've never seen a bad Honda fuel pump, even though many people unnecessarily replace them. If the main relay doesn't work, check all underdash and underhood fuses with a test light or multimeter. Also, perform the K-Test on the ECM, if the CEL stays on.

If you are having fuel system problems, this link should help:

https://www.askmehelpdesk.com/cars-t...ml#post1245523[/

QUOTE] okay thanks ill let you know how it goes

Great.

How do you tell if the main relay is bad? Can you take off the plastic shell I'm still wait for mine it driven me crazy I can't drive my car I took the main relay out of my car put it back in and the car ran funny at first

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Originally Posted by txgreasemonkey

Great.

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so I got my new main relay put it in as along with new spark plugs and a PCV valve and sprayed so carb cleaner in so far so good only thing is the idleing goes up and now when it sits could it be the ignitier coil?

Yes, that was my original recommendation.

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Originally Posted by txgreasemonkey

Yes, that was my original recommendation.

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so the coil is brand new now I think there is a vacuum leak in my brakes cause when I push on the brakes hard the rpms don't go up and down when I let off them go up and down and this is when I'm at a complete stop what do you think?

It's not clear to me what you are saying.