I have a 07 GT vert and have had full CRABS since January and the GTR since about March. On my way to DC this past week, I had my check engine light come on. The guy at Sears said the code was for the engine running to lean. He said it could be a vacuum hose leak. I called my local mechanic and he said it was more than likely a result of the intake and exhaust moving more air and the fuel ratio staying the same. He recommended getting a tune (WAMS). Has anyone else had this problem and has the WAMS fixed it?