Hey guys new to the forum and new to the motorcycle community. I just did a bunch of mods to my R3 to get a little more power from my bike. I did an aRacer mini5 ecu with the af1 wide band o2. Everything installed slick and got the ecu paired and flashed but now I get error code 28 and the bike will not start. When I reinstall the stock ecu the error code goes away. Any ideas? I downloaded the service manual and it doesn’t even list code 28 so I don’t even know what I’m looking for. Thanks.