Details

Replace the rear lower exhaust (oxygen) sensor when the check-engine light appears or fuel economy and performance drop, since its accurate readings keep combustion efficient and emissions low.

• Replacement sign: Check-engine light, higher fuel consumption, rough idling, or a failed emissions test.
• Approximate lifespan: Roughly 100000 to 150000 km depending on driving conditions and fuel quality.
• Install requirement: Needs a dedicated sensor socket and vehicle lift; best fitted by a specialist with fault codes cleared afterward.

Part compatibility