Car just stop running

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Mar 30, 2011 | 12:00 PM

hd john

Thread Starter

4th Gear

Joined: Mar 2011

Posts: 4

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Car just stop running

I have a 1989 L98. When it gets to operation temp it just stop running intill it cools down. I have change the ecu.

Last edited by hd john; Mar 30, 2011 at 04:47 PM.

Mar 30, 2011 | 12:45 PM

engle1147

Le Mans Master

Joined: Jul 2007

Posts: 5,043

Likes: 8

From: Tampa Florida

Quote:

Originally Posted by hd john

I have a 1998 L98. When it gets to operation temp it just stop running intill it cools down. I have change the ecu.

Help us out here. What's the correct year of your L98 car

.....exactly what temp is the "shutdown" problem happening?

Mar 30, 2011 | 02:23 PM

MyFirst90coupe

Burning Brakes

Joined: May 2010

Posts: 840

Likes: 4

From: High Point NC

Maybe it's the first C5 L98 swap?

Seriously though, Does it just completely shut off or does it act like it's running out of gas?

What if any troubleshooting have you done so far?

Mar 30, 2011 | 04:55 PM

hd john

Thread Starter

4th Gear

Joined: Mar 2011

Posts: 4

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Sorry it is a 1989. It will lose spark. I have change distributor,ignition module and the ignition switch.

Mar 30, 2011 | 08:11 PM

engle1147

Le Mans Master

Joined: Jul 2007

Posts: 5,043

Likes: 8

From: Tampa Florida

Quote:

Originally Posted by hd john

Sorry it is a 1989. It will lose spark. I have change distributor,ignition module and the ignition switch.

If you got spark look somewhere else for problems. Try checking the resistance (ohm) or go ahead and just change out the fuel injectors. The stock Multech fuel injectors in the '89 vettes are problematic to say the least......switch to an ethanol compliant set of injectors.

Apr 1, 2011 | 12:11 AM

jfb

Team Owner

Joined: Mar 2001

Posts: 54,124

Likes: 30

From: Cincinnati, Oh USA

You have a common problem with the spark module inside the distributor. They work cold, but quit when they get hot. This happens when they get old. Replace it.

Apr 1, 2011 | 12:50 AM

383vett

Race Director

Joined: Apr 2003

Posts: 17,700

Likes: 1,667

From: moraga ca

He said he changed the ignition module in the distributor.

Apr 1, 2011 | 02:25 AM

tpi 421 vette

Melting Slicks

Joined: Mar 2002

Posts: 3,108

Likes: 126

From: S.L.C. UT

It does sound like a ignition module problem. Did you put the grease on the bottom of the module? I have seen made in Taiwan modules last for a day or two. Is it a quality module? Hopefully it's not made in Taiwan.

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Apr 1, 2011 | 07:04 AM

Joe C

Race Director

Joined: Aug 2000

Posts: 11,470

Likes: 764

did the shutdown problem occur before or after you changed the ECU, distributor, distributor module, or ignition switch? we need a timeline...

remember the basics - fuel, spark, timing, and the ECU controls it all. any codes? tpi 421 vette makes a good point...

Last edited by Joe C; Apr 1, 2011 at 07:20 AM.

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