2025-01-15 · 5 min read
Perodua Aruz O2 Sensor Malaysia
Single upstream lambda sensor on the 3NR-FE — typically lasts 100,000 km. Higher loads reduce sensor efficiency over time. Poor economy and P0136 codes indicate a failing sensor.
Aruz O2 Sensor
- Two O2 sensors: upstream (pre-cat) monitors mix, downstream monitors cat efficiency
- Faulty O2 = check engine light, poor fuel economy, rough idle
- Replace after 80,000–100,000 km if fault confirmed — OEM replacement recommended