Finally got out today and did about 4 hours of mowing, before I could only get about an hour before CEL and engine shutting down. I still suspect the dealer was full of it when they told me what they "fixed". First they said short through insulation (sales person) then before I got there and called to confirm it was ready it was fuel rail was bad and wiring. Then when I got there and talked to the tech he told me the harness to ECM looked like it was getting pinched by the hood so he rerouted them and cleared the code. Symtoms were HARD fuel knock at startup, rpms all over the place without using throttle and would die if clutch or brake pressed. I'm guessing they found something they didn't want to fess up to. Time will tell.