Recently I've noticed my mn blowing a huge amount of dark smoke when I leave work in the morning.
First time it done it I pulled over as it was covering both sides of the road. I lifted the hood and found my egt sensor was loose, I tightened it and seem to have stopped.
Then done next day and sensor is tight, so I'm assuming it only does it when it's cold.
It's serviced every 7500k, once it's warmed up there's little to no smoke.
What should I be looking for?