Will not start when hot outside.

LAWRENRE

MEMBER
1991 ACURA INTEGRA
4 CYL
FWD
MANUAL
130,000 MILES

My Acura will start when it is cool out but when the temps go up it does not want to start. It will crank over fine but no fire. I put a spark plug into one of the wires when it would not start and had no spark on the plug when grounded to the engine. Replaced the fuel filter a week ago but no help. I was wondering if it was the coil or exciter.
Bob

5 Replies

IZAP2

MEMBER
2 POSTS

It sounds like your ignitor module is about to fail. It is located inside the distributor cap. Let me know how it goes.

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Tuesday, January 24th, 2017 AT 7:00 PM

LAWRENRE

MEMBER
2 POSTS

So when you say inside the cap you must mean it is located in the distributor, yes? Do I need to purchase a new distributor or can I get a igniter only?

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Tuesday, January 24th, 2017 AT 7:00 PM

IZAP2

MEMBER
2 POSTS

Sorry about the lack of clarity. Yes, it is on the distributor and you only need to buy the igniter/ignition control module. You can purchase it at Auto Zone or Kragen Auto parts stores (you will find it under ignition-control module). You may want to buy a Haynes repair manual for Acura (1990 through 1993) for detailed instructions on how to uninstall it and then install the new one.

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Tuesday, January 24th, 2017 AT 7:00 PM

KHLOW2008

MECHANIC
41,815 POSTS

Hi Lawrenre,

I would suggest checking the main relay first. Known to cause such problems. Honda ICM are rather reliable and seldom gives way.

Does the check engine light stay on more than two seconds when the ignition switch is turned on?

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Tuesday, January 24th, 2017 AT 7:00 PM

ESJHJ

MEMBER
4 POSTS

I just had to re-solder the main relay circuit board (under the dash to the left of the steering column). I used google to find a article that someone wrote. Google
integra main relay.