I have a Hyster H50XM serial D177B25221S. It has a GM engine and is Gasoline only unit. It starts and runs fine, but does tend to die when throttle is let off quickly. When throttle is applied for more than 3 seconds the MIL light comes on but goes off after idling for aprox 10 seconds. It has a new fuel pump, pressure regulator, tps, map, and fuel injector. I cannot see an o2 sensor on this unit which i would expect to see on a fuel injected unit. Is there a way to get flash codes from this unit?