On a friends Lude, i just helped to boost, there's that thing with a breather cap on it. On an EF, or EG i believe they're on the firewall, or bolted to the back of the intake manifold. I just unplugged it, and it worked. His is just to the front of his pass. inner fenderwell.

Until I unplugged it, it had a CEL and erratic idle. Once I unplugged that, his piggy back started working, car quit smoking, cel went off, and it runs fine.

IRC, shouldnt the WG be ran directly from a 0+ source? like, the compressor?