strange power problem with 348

[adi]

My 348 seems a bit unhappy when cold at the moment - sometimes there is practically no power ie minimum revs even when pressing the throttle. As the car warms up, the power starts to come in jerks, then things are fine when I have temp. I have noticed more coking on the rh bank exhausts than the left (challenge system fitted). I'm guessing some of the cylinders aren't firing properly?

Advice much appreciated, before I have to acknowledge it needs a trip to the dealers...

>>> Edited by adi on Monday 9th September 14:07

[adi]

Thanks for the replies chaps - I think a trip to the shop is defo a good move (I avoid it because I always get tempted by new toys which I can't afford every time I go!)

[adi]

I hear that plug fouling can be a problem - particularly if the car has been used for short runs and in heavy rain?? Anyone experienced this and did the symptoms relate to the problem I'm having? Just a thought...