2025-01-15 · 5 min read
Perodua Alza O2 Sensor Malaysia
Upstream lambda sensor on the NR-VE — typically lasts 100,000 km. MPV with frequent full loads can shorten sensor life slightly. P0136/P0141 codes and poor economy indicate a failing sensor.
Alza O2 Sensor
- Upstream O2 sensor monitors combustion mix — downstream monitors catalytic converter efficiency
- Faulty O2 sensor: check engine light, poor fuel economy, rough idle — diagnostic scan to confirm
- Service life: 80,000–100,000 km — replace when fault confirmed by scan