The connector goes through that rubber grommet and the harness is in the cabin behind the seat about where your right butt cheek would be except underneath the carpet.
You have to take the rubber hole plug out of the car, and feed the wires thru it before splicing the new sensor to the old plug end.
See related links below for location. Unclip harness, remove 10mm bolt, remove sensor.
The 2001 Mazda MX-5-Miata has 16 valves.
The 2001 Mazda MX-5-Miata is a gas-powered vehicle.
The 2001 Mazda MX-5-Miata has a 5-speed manual.
The 2001 Mazda MX-5-Miata has an inline 4 engine.
The 2001 Mazda MX-5-Miata's turning circle is 30.2 ft..
The height of the 2001 Mazda MX-5-Miata is 4 ft. 0.4 in. (48.4 in.).
The 2001 Mazda MX-5-Miata is 12 ft. 11.7 in. (155.7 in.) long.
The 2001 Mazda MX-5-Miata runs on regular unleaded.
The 2001 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2001 Mazda MX-5-Miata has a 1.8 L base engine size.
The drivetrain warranty of the 2001 Mazda MX-5-Miata is 3 yr./ 50000 mi..