i have just invested in a mark 4 115bhp gti when i got the car delivered i was told it needed an oxy sensor or summin for the exhaust emission control
and up until yesterday it was shuddering quite violently sometimes. the problem seems to have dissapered but i have noticed when i use the car longer than an hour or so it seems powerless and the accelerator pedal seems heavy!?!? what could it be ?? any ideas would be appreciated oh and by the way i dont like being overtaken by the lupo gti its infuriating.
