Hi, my 6n has started misfiring. Before getting a code reader I ran through a few things including new plugs and coil. These didn't help and now that I have the reader it gets these: 00609 ignition output 1. Sporadic - open/short circuit to Earth 01249, 01250, 01251, 01252 - Fuel injector for each cylinder. Sporadic - open/short circuit Tomorrow I will check my Earth connections, although I'm not sure how "sporadic" would relate to these. Any other thoughts?