Hi,
Okay, let's do this a different way. When it stalls and won't restart, see if it will if you use starting fluid. If it does and then stalls, we know it is a fuel-related issue. If there is no change, I need you to check for an ignition spark.
Here is a link you may find helpful:
https://www.2carpros.com/articles/how-to-check-for-ignition-spark
Hopefully, this will help us narrow things down. The idea of what is happening sounds like a typical crankshaft position sensor, which will cause the engine to lose spark to the plugs, but that doesn't explain the gauges shutting down like the key is off.
I'm questioning a couple of things at this point such as the ignition switch itself and either the body control module or powertrain control module.
Try what I suggested and let me know the results.
Takae care,
Joe
Wednesday, August 9th, 2023 AT 10:30 PM