2001 Golf Mk4 TDI - Black Smoke

[Davids]

I have a 2001 MK4 1.9 SE TDI 130 Golf.

Under accelloration it produces clouds of black smoke, I have changed the MAF but no change.

I have tried disconnecting the pipe to the EGR still no change.

However when I disconnect the MAF and run the car, (in what I suspect would be limp mode), although geartly down on power there is no smoke at all at any speed.

Any ideas would be greatly appreciated.

[GtTdi 365lb/ft]

Just disconnecting the pipe to the EGR may not be enough, a full clean of the unit is more likely to give you results. Theres likely to be greasy deposits upto the inlet.

Other than that a tune may be in order as the smoke is usually the effect of a incorrect air/fuel mixture. The 'get you home' mode ( g.y.h = the noise you make when your ecu light comes on) reduces your engine power output, so you will have less air/fuel going in - therefore less smoke out the end).

You could try changing your fuel filter and air filter to see if it helps.

[Davids]

Thanks i will try that

[M53494]

A split/break etc in the turbo pipe?