Trying to get to the bottom of a surging/hesitation issue thats been annoying me since having the car remapped. Vagcom seems to be logging missfires now. I've had the Maf replaced after the MAF. The plugs, coil packs, temp sender and thermostat were replaced before the map. Car seems to be running hot when checking on the aircon (99 degrees)
After reading this thread i'm beginning to think that my fuel pump maybe shot.
Where are the pump and filter located. Theres something under the rear passenger seat, is this the filter? Would it be cheaper to have this replaced first?
Finally what sort of costs am i looking at to have the pump replaced.