Hi guys, need some of your help! My cousin has a 1.8TQS and is experiencing some bad juddering under throttle. Most of the times when he pulls out of a junction or when he tries full throttle it judders as if the car is about to cut off!? I got it around mine, took the spark plugs out and it was all black- indication of over fueling?! checked the air filter for blockages cleaned the box, and put newish sparks in there. any idea if this linked to something else? I was thinking the fuel filter maybe choked but it seems fine sometimes. He said to me that its kind of ok when its cold, its when its warm it really does that!
Any help would be much appriciated guys!