Basically a couple of months back i blew my J spec turbo, so bought some second hand hybrid ones that had covered around 200 miles.
fitted them and received no boost from my second turbo, did a bit of fault finding and found it to be one of the vsv's that was caput.
I ran the car in ttc mode for about a month and a half until I got fed up of the exhaust noise at 3000-4000 rpm.
I have just recently fitted a second hand vsv which is working.
but my problem is intermittent with the second turbo still.
If I plant my foot from the word go I get boost from turbo 1 + 2 through all gears. But when I drive sensibly through 1st 2nd and 3rd I get no boost at all from turbo 2 its just the engines power. So if I set of normally and then plant my foot just about when the 2nd turbo is about to kick in I get the lull of power as I used to get before the rush but then nothing comes on line.
its really quite hard to explain, is there anything other than my vsv's I need to check, could it be the fcd stepping in or any thing else that could be at fault I really don’t know but all I can say is that its doing my head in.