1990 Corvette HEI Distributor

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Mar 25, 2015 | 06:46 PM

48vette

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8th Gear

Joined: Apr 2014

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1990 Corvette HEI Distributor

I have voltage to the HEI coil, but can not get any spark to the plugs. I recently replace the Ignition control module , coil, distributor cap and rotor and it did start and run for a short while. Now it will not start and there is no spark to number one plug.
Any help would be appreciated

Mar 26, 2015 | 12:46 AM

Cliff Harris

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Joined: Apr 2002

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From: Anaheim CA

Measure the resistance of the pickup coil. It should be around 800 ohms. They are known to crack and break into pieces.

Mar 29, 2015 | 07:00 PM

48vette

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8th Gear

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Quote:

Originally Posted by Cliff Harris

Measure the resistance of the pickup coil. It should be around 800 ohms. They are known to crack and break into pieces.

I checked the pickup coil and it does measure 840 ohms.
Still no spark. I also checked the Ignition module and it checks out good.

Last edited by 48vette; Mar 29, 2015 at 07:18 PM. Reason: added info.

Mar 30, 2015 | 12:08 AM

Cliff Harris

Race Director

Joined: Apr 2002

Posts: 10,036

Likes: 346

From: Anaheim CA

Are you getting 12 volts to the distributor (pink wire) with the ignition on?

I would be looking at the coil. You might have a problem with the contact between the coil and the rotor.

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