Bugger, the article i have is about the very very early United kingdom aw11 ecus which didnt appear to operate a cat over in britain, so no extra info about exactly what the O2 sensor does listed here. I set bars on major and base to guidance the manifold and https://4age20vblacktopforsale48921.blogsvirals.com/26480141/rumored-buzz-on-toyota-4a-ge