09 sportsman 500 EFI cranks but will not start and backfires through the intake. Machine ran great day before (140 miles / 7 hrs) next morning issues. Did find bad timing gear on crank. Replaced both the crank / cam timing gears along with the timing chain. Timed per spec. Adjusted the valves. Have good spark. Have fuel. Clean air filter. Pulled codes: 12 (start of sequence), 41, 22, 51, 61 (end). All codes speak of electrical issues. have pulled harness apart looking for shorts, breaks, cuts, etc... and found none.
ideas?????
ideas?????