Car stalled in traffic light and no codes/check engine light.

Ok...these cars are now driven by 000s and 111s all of our systems ... including the throttle, are by wire. That means electrons...not mechanical. I will call it a computer glitch.

If you were logging data at the time, then there would be a possibility of tracking down those 000s and 111s. As of now, you are chasing a ghost in the machine.

I suspect there was an ECU issue and a hic-up. I log data all the time, and some strange sh*t goes on with parameters of apparently no reason.

Yes. My buddy's 2.5 was doing that. We cleaned the Thottle Body and it has not killed yet.

A 2015 shouldnt have a dirty throttle body unless he’s rallying it on weekends without a airfilter.

This is electrical. I recall another thread here similar issue. He spent some time checking plugs / Connectors under the hood and found a major plug wasnt seated fully so that the clip had clipped into place. He pressed it into place and no more issues. That would be my first todo item. Any wire/plug that isnt securly clipped together would be suspect.

A 15 should not have any spark plug work done yet which case crappy labor screwing up factory installed stuff would be suspect.

Thanks. Yes, it's a strange issue. What's the difference between me telling the dealer about the issue and the dealer seeing it for itself? Does it make a difference in debugging the issue? Anyways, I need to get a camera and see if I can film it and show it to them.

Is there a way to increase the idle a bit manually or this is all done through the ecu? Is there a screw that I can twist or turn? My gut feeling the rpm drops and stalls the car when i get to the traffic stop.

Thanks all!

What was the temperature when this happened? Our 3.6R has a similar issue when it gets really hot and I believe it to be a torque converter issue.

subiesailor said:

A 2015 shouldnt have a dirty throttle body unless he’s rallying it on weekends without a airfilter.

Click to expand...

His was a '14 with 70k miles.
TB was dirtier than I thought it should be, and air cleaner was maintained to Subaru's specs. Lots of black stuff in there you could see with a mirror and flashlight.
YMMV.

DougNuts said:

What was the temperature when this happened? Our 3.6R has a similar issue when it gets really hot and I believe it to be a torque converter issue.

Click to expand...

Or is it is really cold, it can be ice in the fuel system that clogs the (possibly already dirty) fuel filter. Enough gas seeps through to start but it soon starves itself out. If the tank was filled with southern blends without deicer in the mix, this is a real possibility.