P008E
Fuel Cooler Pump Control Signal too High
Fuel SystemMODERATE
Описание
Fuel Cooler Pump Control, Signal too High
Частые симптомы
- Possible fuel cooling system control issues
- Check Engine Light
- Erratic fuel temperature control
- Possible fuel cooling system protection activation
- Reduced fuel system efficiency
Возможные причины
- Short to power in fuel cooler pump circuit
- Failed fuel cooler pump stuck on
- ECU driver circuit malfunction
- Wiring harness short to 12V
- Aftermarket fuel system interference
Диагностика
- 1. Test fuel cooling circuit for shorts to power
- 2. Check fuel cooler pump mechanical operation
- 3. Inspect wiring harness for damage
- 4. Test ECU fuel cooling control output
- 5. Check for aftermarket fuel system components
Решения по ремонту
- Repair shorted fuel cooling wiring to power
- Replace faulty fuel cooler pump
- Remove interfering aftermarket components
- Replace ECU if driver circuit failed
- Reset fuel system temperature adaptations
Профилактика
- Professional installation of fuel system upgrades
- Regular fuel cooling wiring inspection
- Avoid splicing into factory fuel cooling wiring