That's why I want to know what
ecu is in the car because the stock GC doesn't log any code except O2 heater short to ground.
When the sensor dies it just doesn't output any voltage to the
ecu.
I wonder if it has an
ecu and it's pinging (powerFC spec)?
Hence the cel when climbing hills.
If that's the case there's nothing logged or able to be read after the event.