1999 Honda Civic Shuts Off While Driving

1999 HONDA CIVIC
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FUNKYBASTAGE
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  • 1 POST
I have a 1999 Honda Civic VP with almost 100,000 miles. Recently I have been having problems with the car turning off while driving. It doesn't matter how fast I am driving, the car will just shut off and then I coast to the side of the road and put the car in park. I can usually just immediatley start the car right up, but sometimes it takes a minute to start. It happens randomly and I am clueless to what is going on. I replaced the spark plugs and battery and it hasn't helped. Any help on this problem would be much appreciated.

Thanks
Apr 1, 2006 at 5:22 AM
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LOSONE
  • ✓Experienced Mechanic
  • 1,616 POSTS
Sounds like the main EFI relay is heating up and causing the car to quit.

It is located under the dash at the very top about in line with the left knee. It is a big relay attached to the upper dash with a 10mm bolt.

Locate the relay and see if it is hot after the car stops. It is pricy to replace unless you go to a salvage yard.

Typical Honda problem Good Luck
Apr 1, 2006 at 6:58 AM

Suggested Repair

Inspect the main EFI relay under the dash near the left knee, attached to the upper dash with a 10mm bolt. After a stall, check whether the relay is hot; if it is overheating, replace it, considering a salvage-yard unit to reduce cost.

Conversation Summary

A 1999 Honda Civic VP with nearly 100,000 miles randomly shuts off while driving at any speed, then usually restarts immediately or after a short wait. Replacing the spark plugs and battery did not help. An expert suggested the main EFI relay may be overheating and recommended checking it for heat after the car stalls.

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