Ok, I did some investigating on my system. I checked the electric valve (direct connection with 12v battery) and it seems to work well. I think my secondary valve is shot which is leaking air back to the pump. This is also confirmed as the supply hose to the SAP (from the air filter box) is just mush, indicating exhaust back flow. Also, the air filter I took out of the car when I got it has a big black spot right where the SAP tap is, again indicating exhaust back flow all the way to the filter. |