2026-10-08 · 5 min read
Nissan Almera Throttle Body Cleaning Malaysia
Almera throttle body cleaning: B17 VG20 (port injection) — throttle body carbon at 20,000 km is the main concern; symptoms are rough idle and low-speed hesitation. N18 HR10DDT (direct injection) — throttle body builds up faster due to EGR influence. Cleaning: spray-based cleaning without removal; full removal and clean. Always perform idle relearn after throttle body cleaning to reset the ECU's idle adaptation.
Almera Throttle Body Cleaning
- Clean throttle body every 40,000 km — carbon deposits cause rough idle and hesitation
- N18 uses electronic throttle (drive-by-wire) — must reset ECU adaptation after cleaning
- Use throttle body cleaner spray (CRC, Liqui-Moly) — do not use carburettor cleaner
- Rough idle after cleaning = ECU adaptation not completed — idle vehicle for 10 minutes to relearn