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Engine shuts off while driving

20K views 10 replies 7 participants last post by  zero_gravity  
I have a 2014 Mazda 3 and this issue started happening yesterday.

I drove a good 15-20mins when all of a sudden the engine just shut off, there was no stutter or knocking, and the radio/infotainment system stayed on. I was able to pull over safely, at this point the car was in accessory power mode so I turned it off and was able to start the car right away.

This issue has happened 5 times since yesterday, without any obvious triggers.

Here are my observations:
  • There are no error codes via ODB-II.
  • At times I am able to drive 10-15mins without the engine shutting off, and at other times the issue re-occurs within 1-2 mins.
  • I am always able to restart the car (after shifting into 'Park')
  • The issues hasn't happened while the car is idling
  • Note: I don't see how this could be related but I did change the rear brake pads 4 days ago.

This has me perplexed, hoping to get some guidance.
Thanks.
throttle body or EGR or intake manifold. There was a similar problem. OBD showed no errors. Cleaned it up and it's gone. Mazda 3 Diesel 2014

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