So just had the bottom end rebuilt with stronger diff plate new(used cases), new oil pump, cam chain, new wet clutch assembly, wet clutch drum, one way bearing, new belt, etc etc. I was able to ride it this past weekend and the motor seemed good except for a constant stall and it is somewhat hard to re-fire without throttle manipulation sometimes. That seemed to be an existing trait ever since the exhaust 2r tip was installed so I do not believe that has any relation to the rebuild.
That being said, I also had the eps light on wanted to pull the codes to see if it was a simple cheap fix (ie relay, fuse, bad wire etc). I have no intention of spending 1200.00 to replace the unit. Anyway, I figured maybe while I had the radiator off and the rack removed I would entertain a "pod mod" to see if it would help correct the stall at idle and low speed. I started with the eps codes because I still wasn’t sure about the cutting of wires on the ecu harness. I seem to get different people saying different things on which wires to cut and or to move??? Yes mine is an 07 but it won’t allow me to access anything except diagnostic codes.

At any rate, I read the manual and pulled the codes by grounding the diagnostic male end on the eps module. All was well and I got what I believe is 41 and 21 (4 flashes, brief pause then a single, then about three seconds followed by 2 flashes and a brief pause then a single again). The pattern just repeated. I attempted to clear the codes per the manual and then turned the key off. I waited briefly and then turned power back on and attempted to start said machine (just briefly to see if the eps light would disappear since no radiator= no coolant), but it would not start. After about five seconds I get an ER-1 code, all warning lights on the right light up and no gear indicator lights come on. ER-1 is an ecu code (I had not tampered or messed with the ecu at all and it was just running fine before I pulled the eps codes). Since then I have cleaned and dielectric greased all connections, including the pod and the ecu and the eps, but it still won’t reset. Main fuse, eps and starter relay fuses are all good.
HOW DOES PULLING EPS CODES PER THE MANUAL CAUSE THE ECU TO BE FRIED???
Sorry so long winded but if I needed a break before I took out the .308 and put the Grizzly out of my misery!

Anybody please help!!