[s-cars] WGFV Issues

[emmett03 at aol.com]

I've been having an erradic boost problem the last few months, symptoms below:
 
Normal boost max is around 17-19. Once and a while at WOT boost is catching around 12 then after a couple seconds shooting up to max. Boost used to be very linear up to max, now its very hesitant and catches at points, sometimes it will just stay at around 10. 

Well tonight I charged the system to make sure there were no leaks, charged it up to around 15 and nothing but some air coming out of the oil fill cap. Determined no boost leak 

Second I plugged the turbo line to the WGFV, let me say wow. Make sure if you do this you keep very close attention to your boost gauge. It would go up to 25+ under half throttle. Very impressive, and scary for the engine. 

Well, boost behaved like it used to, straight up to, well beyond max. It is my understanding that is very rare for the WGFV to go bad. It has a good amount of corrosion, I cleaned off the leads to see if that would help but I have yet to unplug the turbo line (its very hot right now). So I dont know if maybe it was just getting a bad connection, I'll find out tomorrow when I hook it back up. Has anyone actually experienced this go bad on them? Is there a way to maybe spray some cleaner of some sort up in it? Well Thanks for your help. Emmett 

RS2 Turbo 
RS2 EM 
Stage1 chip