Not sure where to start looking, i've read a few things on the net but ended up confused.com. The audi as been ok up to yesterday, turns over but not a hint of firing up! Not used her much ,.last couple of short trips I noticed a bit of lag between gears, put it down to being cold. So, where do I find the fuel pump on a 2.4 Cabriolet 2002? Any other things I need to check? And there's no fault codes!