Thank you all for the reply. The engine does fire when the key is turned to the start position. I am tested the resistance on each leg of the key switch and I think this is where my problem lies. the glow plug position tests ok. The starter and fuel pump legs both read ok at the start position...
My BX2200 had less than 8000 hours on it. Turn the key, the starter engages, engine turns over, but then when I release the key the starter disengages and the engine dies. Has anyone seen this? Any ideas?