Just been reading through this thread again with interest,

MATE if you still have the car, all this talk of black smoke, and rough running, and overfuelling smell etc, smells VERY VERY VERY much like the problem i had with mine.

It took me months to figure out, but i eventually traced it to the MAP Sensor. Water had been sitting on the map sensor bracket, and eventually ingressing into the map sensor itself making it go faulty. When they do go faulty and short, they cause the car to overfuel MADLY as its either at 0v or 5v i cant remember which, but either way thats making the car think its on boost, so it chucks in fuel accordingly to compensate, so my car would run rough as a bag of nails, chuck out black smoke, cough, splutter, wouldnt rev up, then would eventually die.

I changed the map sensor, just thinking it was "faulty" the first time, on the advice of Tony at Turbosystems. He said it was 99% a map sensor prob, just by diagnosing over the phone. It happened again a few weeks later, and it took me the THIRD attempt, and 3 faulty map sensors lol to find out that the rain water running down in the vent, and onto the bracket was shorting the sensor, fooking it, and hence causing my problem.

It sounds VERY much like this is your problem mate.

I changed my Lambda sensor too, although it made sod all difference. Expensive buggers they are too....

If i were you, i would find out what MAP Sensor you have, (they are colour coded) but if your chipped then i would assume its a 3Bar map sensor, so try and get a loan of a good one from a mate, or anywhere, and swap them out to test. Its located on the pass side inner wing, upside down on a triangley bracket. with a multiplug and a vacuum hose going into it....

Swap it, let the car start, let it burn off any excess fuel, take it for a spin and see how it is. Each and every time i fitted a new one my car was spot on, until i eventually realised that the car went to shit every morning after the night before when it had been raining LOL and i eventually put 2 and 2 together why i was munching through MAP Sensors lol.

Seriously mate, give it a try, i am 90%sure this could be your exact prob based on my experience and Turbosystems advice. I could of course be wrong, but for the sake of 5 mins to test it, its worth a try.

You sould of course also have a 2.5 Bar MAP Sensor, which are temperamental, so better off to get a 3 Bar if you do.

Hope this is of some help, i know how soul destroying it is having to deal with it each and every day and not be able to enjoy it.

Let me know how you get on please

Cheers

Michael