well my air pump is off. but I dont know about the acv.

if you still have the ACV, then the above applies (it's on the passenger side of engine ... you should see 2 open tubes: one to the air pump and one to the air silencer, which you don't have anymore)



the vacuum lines of interest are the 2 just above the ACV: 1 goes to the relief solenoid valve, the other to the switching solenoid valve If those are not connected to where they should, there's trouble. When idling, you should feel vacuum for both of them if you disconnect them at ACV, past 3500 rpms, no vacuum. It's on my web page under emissions->secondary.



hugues -

you could also just check your vacuum routing and compare it with the one in HAYNES manual or factory service manual (www.fc3s.org under how-to's->manuals, fuel and emissions chapter).

or compare it with some one else's car

that might be easier.



hugues -