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Trouble Shooting EFI (Electronic Fuel Injection)

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Table of Contents

1. Mesin Tidak Dapat Di Start

  • Immobilizer
  • Koneksi kelistrikan-mesin/batteray
  • Ignition system
  • Tekanan bensin/regulator tekanan bensin
  • Jumlah bahan bakar/kondisi filter bensin
  • Koneksi/pompa bahan bakar
  • Kebocoran/kondisi air intake-vacuum system
  • ECT/engine coolant temperatur sensor
  • CKP/Crankshaft position sensor
  • MAP/manifold absolute sensor
  • Injectors
  • CMP/camshaft position sensor
  • Konektor/kabel/relay ECM
  • ECM

2. Mesin Susah Hidup

  • Koneksi kelistrikan-mesin/batteray
  • Jumlah bahan bakar/kondisi filter bensin
  • Tekanan bensin/regulator tekanan bensin
  • Kebocoran/kondisi air intake-vacuum system
  • Ignition system
  • ECT/engine coolant temperatur sensor
  • TPS/ throttle position sensor
  • Injectors
  • CMP/camshaft position sensor
  • CKP/Crankshaft position sensor
  • Konektor/kabel/relay ECM
  • ECM

3. Mesin Hidup Lalu Mati

  • Kebocoran- air intake/vacuum sistem
  • IAC – Idle Air control valve
  • Tekanan bensin/regulator tekanan bensin
  • Kebocoran/kerusakan/tersumbat- saluran bensin
  • TPS/ throttle position sensor
  • MAP/manifold absolute sensor
  • Jumlah bahan bakar/kondisi filter bensin
  • Konektor/kabel/relay ECM
  • ECM

4. Mesin Dingin - Susah Idle

  • Kebocoran- air intake/vacuum sistem
  • IAC – Idle Air control valve
  • Tekanan bensin/regulator tekanan bensin
  • Kebocoran/kerusakan/tersumbat- saluran bensin
  • ECT/engine coolant temperatur sensor
  • Injectors
  • MAP/manifold absolute sensor
  • Konektor/kabel/relay ECM
  • ECM

5. Putaran Mesin Tersendat - Sendat

  • Kebocoran- air intake/vacuum sistem
  • IAC – Idle Air control valve
  • Tekanan bensin/regulator tekanan bensin
  • Kebocoran/kerusakan/tersumbat- saluran bensin
  • Pompa bahan bakar/konektor
  • O2S/Oksigen sensor - HO2S/ Heated oksigen sensor
  • Injektor
  • MAP/manifold absolute sensor
  • TP/Throttle position sensor
  • Konektor/kabel/relay ECM

6. Putaran Idle Terlalu Rendah

  • IAC/idle air kontrol valve
  • TP/throttle position sensor
  • ECM

7. Putaran Idle Terlalu Tinggi

  • IAC/idle air kontrol valve
  • Throttle valve- tersangkut/ macet
  • TP/throttle position sensor
  • Injektor

8. Acceleration Terlambat

  • Bocor/tersumbat – air intake/vacuum sistem
  • Throttle valve- tersangkut/ macet
  • IAC/idle air kontrol valve
  • Tekanan bensin/regulator tekanan bensin
  • Injektor
  • Konektor/kabel/relay ECM

9. Backfiring (Pengapian Balik)

  • Ignition sistem
  • Air intake/vakum sistem bocor
  • CO level
  • MAP/ Manfold absolute pressure
  • Tekanan bensin/regulator tekanan bensin
  • Injektor
  • Konektor/kabel/relay ECM
  • O2S/Oksigen sensor - HO2S/ Heated oksigen sensor

10. Misfire (Pengapian Tidak Tepat)

  • Ignition sistem
  • Air intake/vakum sistem bocor
  • IAC/idle air kontrol valve
  • ECT/ engine Coolant Temperature sensor
  • Intake air temperature/IAT sensor
  • Tekanan bensin/regulator tekanan bensin
  • Injektor
  • O2S/Oksigen sensor - HO2S/ Heated oksigen sensor

11. CO Level Terlalu Rendah

  • Air intake/vakum sistem bocorO2
  • S/Oksigen sensor - HO2S/ Heated oksigen sensor
  • ECM

12. CO Level Terlalu Tinggi

  • O2S/Oksigen sensor - HO2S/ Heated oksigen sensor
  • IAT/ Intake air Temperature
  • ECT/Engine coolant temperature sensor
  • Tekanan bensin/regulator tekanan bensin
  • Injektor
  • ECM

13. Konsumsi Bahan Bakar Terlalu Berlebih

  • Tekanan bensin/regulator tekanan bensin
  • Injektor
  • Throttle valve- tersangkut/ macet