Originally Posted by MARKSKI

martin,
its not weird... it did the same thing to me... usually ur not at full boost nor full load in lower gears... its only when u get in 4th.. sometimes top of the 3rd.... thats when u feel it...
I forgot if the Doc has upgraded WG springs.. if so.. there is ur answer... he probably ran too much boost and fowled the plugs.... maybe it was cold and the boost creeped up on him... as far as the .9 bars.. his TB shutdown and went to limp mode...
thats why I prefer tuning kits that offer the TB shutdown bypassed with the ability to controll the boost as well.
Imagine how hard it it to dial inn those WG springs such that they dont hit 1.3 bars yet give the max each and every time... now put the changing temps in the mix and there is ur problem... (colder= more boost... warmer=less boost).
just my opinion.
markski