So, I hop in my 92 400e this mornging, and to my delight, the check engine light turns on. I've heard a lot of times the o2 sensor goes out around 80k miles (mine has 85k), but I am not too sure what the problem is. The car still runs like it did before (which is great). So, any ideas on what it might be would be great. Thanks a bunch.



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Kyle
1992 400E Emerald Green