Sometimes engine shut offs off while driving?

1999 HONDA ACCORD
131,000 MILES • 2.3L • 4 CYL • 2WD • AUTOMATIC
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FCEY
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  • 1 POST
The engine cuts off sometimes while driving. When this happens, I place the gear lever in neutral and start the car and it starts straight away. (My car has automatic gears.) It could again shut off after driving a few miles. There are times it drives without shutting off. I have replaced the main relay twice so far. It drives okay for some time and then it happens again. I have found if I keep the air conditioning on blowing cool air towards my feet it seems to drive longer without it shutting off.
Recently the indicator lights to the air conditioning and related controls on the dashboard do not light up. I am unable to switch on the air conditioning when this happens. These lights just come on at a time of their own choosing and then I am able to switch on the air conditioning to prolong the cut-off period. Sometimes even though the temperature is quite warm inside it does not shut off.
Please help me find a solution to this dangerous driving condition.
Thank you.
Ferdi
Jul 10, 2022 at 2:51 PM
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STRAILER
  • Experienced Mechanic
  • 55,273 POSTS
The fact that you can turn the A/C on, and it keeps it from stalling as often tells me it could be the PCM that is going out. We should run the codes though to see what comes up. Here is a guide to help you:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Just in case I have included the PCM replacement instructions in the guides below. Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.






Jul 11, 2022 at 11:27 AM
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FCEY
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Thank you so much. I will follow your instructions and keep you posted of the outcome.
Best Regards,
fcey
Jul 12, 2022 at 5:47 AM
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