my TDI smokes for the first 5 min when starting

[Turbo Turtle]

my 96 passat smokes when i start it up after being cold.(enough to smoke out people behind me)
the engine has been all rebuilt bored block new guides, valves, seals
new injection pump 4 new injectors. all thats left is the turbo.. but it doesnt use any oil at all.. what could be the problem?
when its cooler in the morning it smokes more.

[Vhunter]

Just a question.. do you know if the '5th injector' has been capped off?

I recall hearing early TDI's had a '5th injector' which while not used to
run the engine, was used to spray a small amount of fuel into the
cat-converter to keep it warm, or help it warm up....  the practice
was discontinued in later model years...

It might be something to check... since it seems you have just about everything else covered!   Check TDIclub.com for 5th injector info to
find out more about it...

Drive on!