Here we go,
My Westy 2.2 WBX was running almost great after traveling 2500 miles to Ontario and back to Vermont. Decided to install the new reconditioned GOWESTY AFM today. 
I disconnected the O2 sensor then installed the AFM started the engine with the O2 still disconnected idled great. Shut everything down reconnected O2. With engine warn went for a short trip on our dirt road accelerated engine it started to miss fire then died! Got it started at idle then accelerated  and it died again. Got it going again, limped back to the farm at idle only. Now it won't start at all! I reinstalled the old AFM and it made no difference. Still no start. Engine turns over, disconnected the return to fuel tank line fuel comes out ok. I can hear the fuel pump running. I think the filter and pump are working., 2 days ago I changed the hall sensor wring with a new connector from GOWESTY, cleaned the hall sensor ground lead. It ran great after that installation.
I'm about to try the"No Start tool"  wiring kit that was suggested to use on the site. But before i did this I thought I would ask for ideas. 

Dennis Jowell
Scotch Hollow Farm
Newbury, Vermont