hi there..im going on holiday shortly..and want to have a diagnostic on my 2ltr petrol gal....shes a bit sluggish feel like shes serching for petrol...ive looked on forum and changed... petrol filter. ht leads spk plugs aif filter.. and as sornwall is a long way and il be towing....any one have any ideas.....been sugested may need remapping...any ideas where i can go that wont cost a fortune for test and work would be great.. cheers anton