Error P0254 on JAC все модели
Injection Pump Fuel Metering Control A High (Cam/Rotor/Injector)
Code
P0254
Vehicle
JAC все модели
Category
Powertrain
Severity
🔴 HighSymptoms
- Poor engine starting
- Unstable idling
- Power drop
- Increased fuel consumption
- Sometimes - emergency mode
Causes
- Fuel injection pump malfunction (wear, jamming)
- Open or short circuit in control circuit
- Problems with connecting wires (oxidation of contacts)
- ECU malfunction
- Mechanical damage to the fuel system
How to Fix
- Check the injection pump control circuit for open/short circuit.
- Check the resistance of the injection pump control coil
- Diagnose pump operation under load
- If necessary, replace the injection pump
- Reflash the ECU (if required)
FAQ
Можно ли ездить с ошибкой P0254?
Не рекомендуется - возможны серьезные проблемы с подачей топлива.
Сколько стоит устранение P0254?
От 15000 за диагностику и ремонт цепи до 60000 за замену ТНВД.