Kohler 7.3ecd issues

[jmauld]

I have a kohler 7.3ECD (LowCO version) that smells like it is running rich.

I’ve thrown a bunch of parts at the generator within the past twelve months and kind of at a loss at what else to try.

Injector
O2 sensor
Both Fuel pumps
Spark plugs
Plug wires
Raw water impeller

Other than random shutoff and the associated error codes it hasn’t been giving me a consistent error code.