My vrs as started producing blacksoot on aceleration. Mainly mid to full throttle. Was serviced last week, and they have put a boost pipe back on as they said it was off ( left side front of car by fuel filter. It's a 04 with 69000. It's quite a lot of smoke. Cleaned my exhaust tip 150 miles ago now it's black, you can see it in rear view mirror. It tends to lower it's amount with higher revs Why?

Edited 28 March, 201016 yr by raddish

Black smoke means it's over-fueling. If code scan doesn't throw out any codes, suspect MAF or a boost leak.

My vrs as started producing blacksoot on aceleration. Mainly mid to full throttle. Was serviced last week, and they have put a boost pipe back on as they said it was off ( left side front of car by fuel filter. It's a 04 with 69000. It's quite a lot of smoke. Cleaned my exhaust tip 150 miles ago now it's black, you can see it in rear view mirror. It tends to lower it's amount with higher revs Why?

sounds like it's over fuelling, is it remapped?

I believe it's standard. I'm on holiday at moment. Will get it in next week , will it be ok for a week / 400 miles?

Mine has always been a little smokey, I thought this was characteristic of this type of car rather than a problem. However, it does come and go so I guess it depends on where I fill up. Have you changed garages for your diesel?

I always use the total near me. For the first time ever I didn't purlt regular diesel, I put there excellance diesel in( could be called something else, but I know I'm close,super diesel anyway ) Could this cause it?

Seems to have stopped now . Half a tank of diesel used, 250 miles. Strange?

The 1.9PD has always been a smoky engine. Both ours do it and i've followed hundreds of Ibiza and Leon FR's and Polo GT's, Golfs etc.... that are all the same.

I have a dragon box fitted and it only makes it kick out slightly more clag than the mrs' nearer standard vRS does.

I find giving it some wellie in 2nd or 3rd once or twice every few weeks helps clear everyhting out a little too.

Cheers

Dave.

My vrs is completely standard and gives out virtually no soot at all, quite impressed as a few other diesels I've had were sooty.

When mine was standard I had no soot at all, had it mapped, then I get a bit. Nowt to worry about.

Mine has always given some soot, you can see a very small cloud/puff when pulling from a roundabout when revs reach 1800 ish. its just the ecu fueling ready for boost. Mine did this in standard and still does in mapped form but no worse. Maybe slightly more noticeable with the Scorpion cat back...... or the exhaust seems to get more dirty quicker.

I have just had a new turbo fitted soot levels are still the same

Nothing to worry about as far as im concerned