Hi guys,

My vw golf mk5 2.0 TDI has been blowing quite a bit of smoke as of late. It may have been doing it for a while but i just haven't noticed. Ever since i have been pretty self conscious of heavy accelerating because that is when i leave quite a large dust cloud.

I understand that Diesels are supposed to blow a bit but for me it doesn't look like a normal amount. My theory is that the chip i installed, which increased the HP by about 30%, is the cause.

My question:
1. Will some kind of cold air intake reduce the amount of smoke?
2. What can i do to reduce the smoke?
3. Because there has been so much smoke, is there anything i should be worried about?
4. Is there anything i should be cleaning out?

Any other suggestions in regards to modification etc would be great too.