Time For A Tune Up?

[Dub_Dude_16v]

Hi guys and girls 

Wondering if i can pick your brains please   

Think it's time my 16v golf may need a tune up but not so sure.

Problems are:-

1) Blows out black smoke when you floor it

2) Drinks so much petrol even when driving like an old man

3) Polish the tailpipe and a couple of miles down the road it's as black as a industrial chimney

4) When starting up when it is hot it's lumpy and ticks over on less than 4 cylinders for a little while until you rev it up

Any ideas?

Cheers peeps 

[Gambit]

sounds like its overfuelling. has the Warm Up Regualtor been modded to adjust the fuel pressure

[Dub_Dude_16v]

Erm not sure buddy 

How can i tell?

[Judderi]

You would have to take the 2 bolts that hold it on out and look at the back of it. If it has a hole in the brass cap then yes it has. If there are no holes then it hasnt. I recon it just needs a tune. Preferably take it to somebody with a Rolling road who knows their stuff about the k-jet injection system.

[Dub_Dude_16v]

Cheers for the help buddy 

Now anyone know a rolling road near or in Herts? Fielder you must know of one?