1990 integra starting problems when warm

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motor - 22 Dec 2005 04:48 GMT

Hi,

I have a 1990 Integra LS which tends to stall immediately after starting
when the engine is warm and/or when weather is hot.
It seems that something either cuts of the fuel or air to the engine. I
have replaced the battery and spark plugs. I checked the EFI Main Relay and
it seems ok.

Any ideas?

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Jim Yanik - 22 Dec 2005 14:31 GMT

> Hi,
>
> I have a 1990 Integra LS which tends to stall immediately after
> starting when the engine is warm and/or when weather is hot.
> It seems that something either cuts of the fuel or air to the engine.

Nothing is cutting off the AIR to your engine.
Fuel or spark,yes.
Fuel is usually the main relay,spark could be a number of things.
Bad distributor cap/rotor,or igniter.

> I have replaced the battery and spark plugs. I checked the EFI Main
> Relay and it seems ok.
>
> Any ideas?

"seems OK".
The common MR failure is not something you can readily discern by eyeball.

Try resoldering it,or replacing it.

(as long as you had it out,you shoulda resoldered it!)

Tegger.com is a great site for info and repair instructions.

Signature

Jim Yanik
jyanik
at
kua.net

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motor - 24 Dec 2005 15:31 GMT

Thanks very much for your comments. I will look further into the Main
Relay.

> > Hi,
> >
[quoted text clipped - 20 lines]
>
> Tegger.com is a great site for info and repair instructions.

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TeGGeR® - 24 Dec 2005 00:07 GMT

> Hi,
>
[quoted text clipped - 3 lines]
> I have replaced the battery and spark plugs. I checked the EFI Main
> Relay and it seems ok.

How'd you "check" the Main Relay? The symptom you describe is *the* classic
Main Relay failure mode.
http://www.tegger.com/hondafaq/startproblems.html#mainrelay

Signature

TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/

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motor - 24 Dec 2005 15:37 GMT

Thanks very much for your comments.

To check the Main Relay, I used a procedure as described in my Haynes
Integra-Legend manual.
In short it means, disconnecting the relay then connecting it directly to
the battery, shorting a pair of terminals, and checking to see if it
switches on another pair.

However, I will have another look at it. Thanks again.

> > Hi,
> >
[quoted text clipped - 7 lines]
> Main Relay failure mode.
> http://www.tegger.com/hondafaq/startproblems.html#mainrelay

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Michael Pardee - 24 Dec 2005 20:33 GMT

> Thanks very much for your comments.
>
[quoted text clipped - 5 lines]
>
> However, I will have another look at it. Thanks again.

That explains a lot - that isn't a very comprehensive test and intermittent
connections (the usual failure mode) can easily slip by.

Mike

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peterkoo1 - 28 Dec 2005 14:50 GMT

Try Main Relay, My Mitubishi truck needed this relay replaced and it is a
1990 model.

<TeGGeR? <tegger@tegger.c0m>> wrote in message
news:Xns9735C2B6D6905tegger@207.14.113.17...

> > Hi,
> >
[quoted text clipped - 7 lines]
> Main Relay failure mode.
> http://www.tegger.com/hondafaq/startproblems.html#mainrelay

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