How to identify a bad oxygen sensor (signal fixed rich)
- 7 years ago
O2 sensor testing (fixed rich), low power, misfire (Mitsubishi Eclipse)
Fixed Rich O2 (Is the sensor lying?)
How to determine if your oxygen sensor is bad, or if you have an actual rich or lean condition. Trouble codes normally associated with this condition: P0171, P0174, P0172, P0175 plus O2 related codes. In our case a P0300 was the only code in memory.
There are multiple ways to identify a faulty O2 sensor, I show three different techniques in this video.
Fixed Rich O2 (Is the sensor lying?)
How to determine if your oxygen sensor is bad, or if you have an actual rich or lean condition. Trouble codes normally associated with this condition: P0171, P0174, P0172, P0175 plus O2 related codes. In our case a P0300 was the only code in memory.
There are multiple ways to identify a faulty O2 sensor, I show three different techniques in this video.