200SX L4-2187cc 2.2L SOHC (Z22E) (1982)
Oxygen Sensor: Testing and Inspection
Resistance Measurement Test
1. Connect ohmmeter between terminal 31 of EFI harness connector and ground.
2. Meter should read 0 resistance.
3. If reading is not as specified, check wiring between exhaust gas sensor and control unit. To test exhaust gas sensor refer to "Component Testing."