Front Oxygen (A/F) Sensor: Inspection
WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.
- Check that the front oxygen (A/F) sensor has no deformation, cracks or other damages.
- Measure the resistance between front oxygen (A/F) sensor terminals.
 Courtesy of SUBARU OF AMERICA, INC.
|
| Terminal No. |
Standard |
| 2 - 3 |
Approx. 3.5 Ω (when 20°C (68°F)) |