GDI Fuel Metering Unit Control Stuck
2002-2008 Jaguar X-Type 2.5L V6
Description
The high-pressure fuel pump metering unit that controls fuel volume entering the pump is stuck, causing incorrect fuel rail pressure.
Symptoms
- Check Engine Light
- Fuel pressure too high or too low
- Engine stalling
- Hard starting
- Rough running
- Fuel smell from engine
Common Causes
- Metering unit solenoid failure
- Contaminated fuel blocking metering valve
- Metering unit wiring short
- Mechanical debris in metering valve
- PCM driver circuit failure
Diagnostic Steps
- Monitor fuel metering command vs actual rail pressure
- Test metering unit solenoid resistance
- Inspect fuel quality
- Command metering unit through range with scan tool
- Check PCM driver output
Repair Notes
Replace high-pressure fuel pump metering unit. May require full pump replacement depending on design. Check fuel quality.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P3655 on Other Vehicles
Jaguar E-PACE
2018-2024 2.0L I4 Turbo
Jaguar F-PACE
2017-2024 2.0L I4 Turbo
Jaguar F-PACE
2017-2024 3.0L V6 Supercharged
Jaguar F-Type
2014-2024 3.0L V6 Supercharged
Jaguar F-Type R
2014-2024 5.0L V8 Supercharged
Jaguar S-Type
2000-2008 3.0L V6
Jaguar XE
2017-2024 2.0L I4 Turbo
Jaguar XF
2009-2024 3.0L V6 Supercharged
Common Questions
What does code P3655 mean on a 2002-2008 Jaguar X-Type?
P3655 stands for "GDI Fuel Metering Unit Control Stuck". The high-pressure fuel pump metering unit that controls fuel volume entering the pump is stuck, causing incorrect fuel rail pressure.
What are the symptoms of P3655 on a Jaguar X-Type?
Common symptoms of P3655 include: Check Engine Light, Fuel pressure too high or too low, Engine stalling, Hard starting, Rough running, Fuel smell from engine.
What causes P3655 on a 2002-2008 Jaguar X-Type?
Common causes of P3655 include: Metering unit solenoid failure, Contaminated fuel blocking metering valve, Metering unit wiring short, Mechanical debris in metering valve, PCM driver circuit failure.