Mark VII V8-302 5.0L VIN F FI (1987)
Oxygen Sensor: Description and Operation
Fig. 9 Exhaust gas oxygen (EGO) sensor
The EGO, Fig. 9, sensor supplies the ECA assembly with a rich or lean condition during engine operation. On 4-97.6 and 4-140 engines, the EGO
sensor is threaded into the center of the exhaust manifold. On V6 engines, the EGO sensor is threaded into the rear portion of the left and right exhaust
manifold assemblies. On V8 engines, the EGO sensor is threaded into the rear portion of the right exhaust manifold assembly.