misfire after other problems
Hello folks, long time no see.
Well unfortunately the Quattro is yet again the bane of my life and I need to get it sorted or get rid of it.
So I'll go through the scenario/timeline as best I recall and then get on to the current problem.
Car 1998 Quattro 2.8l 30v V6 Avant
It has a burning oil smell occasionally after a run.
Gave it a service. No problems as such from that lol
Had a fuel leak from the filter so changed that out. I still have a leak but could either be cracked tank or more likely a crap crush washer on the filter. Not had chance to swap a new one in yet as the current problem appeared.
Cleaned out the breather pipes as they were gunked up as I expected.
Occasionally it would have a small misfire but nothing regular or really problematic.
After filter change it started as normal but due to leak never took it off driveway.
So after sitting a few days it would to start albeit a bit rough and would clear a little if revved. Then became harder to start and is obviously not firing on all cylinders at any time.
All plugs were a little sooty so cleaned them and swapped them around but no real difference.
I have checked it with a cheap scanner and nothing, checked with my Vag-Com and that reports no codes.
so I'm after any ideas as to common faults that may cause this or something I've simply missed.
I am at the point where I will not throw money at it as it's had enough already, so I need to track the problem first.
My current thinking is to just sell it, probably as parts. Seems I spent more on the exhaust than the thing is worth.
any wise words appreaciated, cheers.