So I am curious if they gave you any information about why they found the coil was the issue? Clearly if it is running rough we would think a misfire is the issue but on a 2019 they have really good misfire detection. So the fact that it is not setting a misfire code, I suspect we have another issue that feels like a misfire. Something like a vacuum leak.
However, again due it being a new vehicle we have really good system monitoring so even a vacuum leak should cause the PCM to set a code. This is leading me to think we have a sensor issue like a MAF or IAT that is wrong throwing off the air/fuel mixture causing a rough running condition.
At this point, do you have any way of monitoring o2 sensor data to see if the engine is actually running rich or lean when this happens?
If not, we clearly need to get it back to the dealer. I would suggest taking the adviser or tech for a ride with you to show them what it is doing.
Let me know and we can go from there. Thanks
Thursday, March 19th, 2020 AT 5:25 AM