2025-01-15 · 5 min read
Perodua Alza Carbon Cleaning Malaysia
Alza 1.5L NR-VE: PORT injection — NO intake valve carbon buildup. Biggest advantage over direct-injection competitors. Throttle body clean every 80,000 km. No walnut blast needed.
Alza Carbon Buildup
- 2NR-FKE is port-injected — less carbon buildup than direct-injection engines
- Throttle body carbon: clean every 40,000 km if rough idle or hesitation noticed
- Short-trip driving (under 5 km) increases carbon buildup — occasional highway run helps