I am getting fuel smell (unburned) around my car. I have found a smell of fuel above my charcoal cannister, took it into a garage to check the area and no leaks have been found. I changed lambda and still smells of fuel from exhaust. Vcds shows no codes after full scan. At 3,000 rpm I get 10g/s which indicates no boost leaks. Mot is due in 1 month and I doubt it will pass. Car drives fine. It is 1998 1.8t a3. Any ideas on what it could be I'm a bit paranoid it may burst into flames.