Make smoke Number 1.

[jeffo]

Any ideas? Doing about 60mph on the motorway a couple of days ago. Cruising along gently when I felt the engine pick up sharply a quick look in the rear view mirror showed it was making more smoke than a WW1 battleship. I pulled over quick and switched off. Gathered my wits for a few moments then cranked it. It was off again like a motorbike bouncing off its rev limitor. I was recovered to a garage. The first thing they did was check the oil level, perfect, that wasn't causing it to go mad. The pipe into the intercooler was pulled off and it blew only fresh sweet air! Still loads of smoke. Intercooler right off unplugging stuff wires to sensors and it ran with only the throttle body, it ran normally and the smoke subsided. everything back on. The smoke subsided on a test run. Nobody was any the wiser! How could it run away like that and why the smoke? If I rev it it doesn't smoke. Got to say I'm wary of it now but it just seems back to normal.

[jeffo]

79 looks but no replies.
For what it's worth, I had it tested last week and it passed the emissions easily. I'm thinking now that the bottle of Wynns diesel system and EGR valve cleaner in about 15ltr of fuel was maybe a bit concentrated and being drawn in through the EGR set up loosened a load of crud and oil hence the smoke. It has run great ever since. I'll be using Wynns again!

[Albannach]

79 looks but no replies.!

Because nobody could help?

For what it's worth, I had it tested last week and it passed the emissions easily. I'm thinking now that the bottle of Wynns diesel system and EGR valve cleaner in about 15ltr of fuel was maybe a bit concentrated and being drawn in through the EGR set up loosened a load of crud and oil hence the smoke. It has run great ever since. I'll be using Wynns again!

If I were to postulate on a hypothesis; I'd say one of the connections on one of the sensors was loose or dirty.