Exhaust Gas Sensor
Remove exhaust gas sensor located on front radiator support, next to horn. Using a fused jumper wire, connect battery positive to exhaust sensor terminal No. 4 and battery negative to terminal No. 1. See Fig 1. Apply voltage for more than 30 seconds, then measure resistance between terminals No. 2 and 3. Resistance should be 5-100 k/ohms at 50-95°F (10-35°C). When exhaust gas sensor is exposed to exhaust gas, resistance should decrease. If resistance is not as specified, replace sensor.