Bugger, the write-up I've is around the really really early British isles aw11 ecus which didnt manage to run a cat above in the UK, so no added info about exactly what the O2 sensor does right here. All things considered the grinding and machining the block need to be https://dantefklmh.blogitright.com/26865366/what-does-toyota-4age-blacktop-engine-for-sale-mean