Oxygen Sensor
WARNING: This page is about a different car, the 1995 Mazda RX-7. However, it is still accessible from the selected car via links, so may be relevant.
Warm engine to normal operating temperature. Disconnect oxygen sensor. Start engine and measure voltage at sensor wire while accelerating and decelerating engine. Replace sensor if voltage is not as specified. See OXYGEN SENSOR VOLTAGE table.
OXYGEN SENSOR VOLTAGE
| Condition | Voltage |
|---|---|
| Decelerating | 0.0-0.4 |
| Accelerating | 0.5-1.0 |