I got under my car to locate the O2 sensor and the connection end was dangling free. Where does it connect? Behind the heat shield and farther down toward the muffler or more forward toward the transmission?

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1999 E300 TD
1999 E300 TD, WVO conversion
2007 Jaguar XJ8
1993 190E 2.3, Limited Edition, 239,000 miles (sold)
1991 300 SL (sold)
1977 MGB
1969 TR6
1980 TR8
joturbe@comcast.net