hey there... hope someone can shed light on this problem...
had a bit of a race the other night and after i backed off the car just all of a sudden lost power and spluttered under boost... it had done this on a couple of occasions before this but all i did was turn the car off and back on and the problem went away...
it also is hard to start (mainly when cold) eg. it just kicks over and wont start then pops back through the inlet then eventually runs ok-ish
it runs ok until it gets to 3-5 psi then splutters and misses and is under power...
my turbo is shagged so its blowing oil into the inlet and the factory bov was putting oil spray on the AFM so i tried cleaning it with degreaser then metholated spirits, after this it didnt seem to change anything
i then thought coil packs leading to waek spark so i checked over them found 2 that looked like they might need replacing, plugs are less than 6 months old but pulled them out to see if they had carboned up... and they look slightly black but still in good condition
its kind of like its leaning out under boost maybe but no pinging, no raised engine temp, and plugs dont look burnt,
no oil in water, no water in oil, not losing water so doubt its head gasket
i just cant work out what it might be... asked a couple of mates and they have no idea either...
could it be the AFM on the way out and messing up the fuel mix
any ideas or info would be much appreciated