Hello. I need some help with a TT 2...

[tlamerman]

Hey guys. I have been working on a Turf Tiger 2 with the liquid cooled Kawasaki EFI engine. First off... I am nothing more than a Youtube mechanic... so go easy on me, haha. I was getting a code 52, only running on left cylinder. I replaced the right side ignition coil and plug and that didn't do it. It would start but still only on one cylinder. So with some amateur multimeter testing I got to the pulse coil on the flywheel and ended up replacing that. After putting it all back together and filling the radiator, I went to start it and the display came on and fuel pump clicked, but when I turned the key it just went dark and nothing happened like it blew a fuse. The 5 amp fuse by the display was fine but the strange part was that after a few minutes it would do the same thing... display on, click, then nothing. I checked all of the electrical connections that I messed with and it looks ok, but where are the main fuses located? Anyone have any idea what I may have done? Would a faulty pulse coil cause this?

 

[Alan]

That code 52 is a real pain. Good call replacing the coil and plug first since those are the easy ones. The fact that it's still stuck on one cylinder after that points to something deeper in the ignition system or the fuel side to that cylinder. Before you go further down the diagnostic rabbit hole, what's the multimeter showing you on the right side coil now. Is it getting proper voltage when you're trying to start it?

 

[tlamerman]

All the voltage tests check out, it's getting power to the coil, but I don't think that the pulse side is working correctly. I'm down to the possibility that the ECU is not triggering that right side correctly. Is there a way to test the ECU itself to verify that it is not working properly before choking down $500 for a new one? I assume that a dealer can't bench test it and would need the whole machine, correct?