A clogged injector makes sense. I tried an Italian tune up yesterday and it seemed to do the trick. It might have knocked something off in the prechamber.
The coking issue worries me. I've read about it also. I doubt I could have any coking with so few miles but if I do, I'll be in trouble fast. I use diesel to start and shut down own so there's never any cold oil used.

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DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012