Mine weren't working and I replaced the IMRC with a used one from ebay.
Now, after a couple of months, I am getting a check engine light and a code P1518.
Refers to the Intake runner being stuck.
I see it as the manifold runner sticking,down inside the lower manifold, not the actual IMRC box like Tony was thinking.
I think that I will have to do the manifold cleaning deal AGAIN...
Seems kinda funny that it just started after a recent trip to my Doctors ofice where I had to Valet park the car...
Also, I have done the open Intake deal recently, with the K&N filter mounted on the adapter plate without the stock SVT airbox.
That caused the "Moose" to appear and Bill Jenkins sold me on a New Style Anti-Moose plumbing deal without the tank and a New Air sensor...
Bottom line, the moose left town, but the car seems to run a little funny since and now the P1518 code.
I reset the code but it came back after a short trip.
Gary
