IT is almost CERTAINLY a reversed connection on one of the IGNITION plugs. It is posible to inadvertently connect them reversed - I know because I did. I contacted COOBER - and that's what the immediately suggested and said ; if it does not work - SEND PHOTOS off all connectors to them.
Lot's of light in the garage, reading glasses, and a lot of patience. It is worth (ime) creating more space than you think you need by eliminating cable ties and moving things like breather pipes PRO-ACTIVELY.