2025-01-15 · 5 min read
Perodua Bezza O2 Sensor Malaysia
Single upstream lambda sensor on the NR-VE — lasts 100,000+ km typically. Failing sensor causes poor economy and CEL codes P0136/P0141. RON95 is adequate.

Bezza O2 Sensor
- Both 1KR-FE and 2NR-VE have upstream and downstream O2 sensors — lifespan 80,000–120,000 km
- Faulty O2 sensor: poor fuel economy, rough idle, higher emissions
- Replace on fault code — do not delay as it affects fuel trim and catalyst life
