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Shut Down While Driving

harrytech
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harrytech Apprentice

harrytech

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Posted

This morning after dropping my daughter off at school I was driving at 50kmh on a flat road and the car just died, dash lights off, engine stopped. I rolled to a stop, turned the ignition off and then just started it again like nothing had happened. What the heck?

This would not be good going down a steep hill, brakes are crap without the engine running. Any ideas, What could this be.

Cheers Harry

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jackbh241 Collaborator

jackbh241

Posted
Posted

I had a similar issue with my M35. In my situation it ended up being a poorly wired immobiliser. However it could be a range of things

- Dirty or broken AFM (this was most commonly suggested to me, try cleaning, replacing or disconnecting it)

- PCV valve

- Dead crank angle sensor

- Dead fuel pump

There are probably more but those are the things I went through when mind did something similar haha. Good luck!

scotty nm35 Grand Master

scotty nm35

Posted
Posted

If the dash lights went off then I would suspect a relay or power module fault, or perhaps a battery/terminal issue

Commonly in wet conditions the IPDM module behind the battery gets saturated as the bung in the bottom blocks, filling the battery compartment with water. I usually just pop the bung out so it drains better. You can test it by flooding the hose down there and seeing if it drains.

  • 2 weeks later...

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