High-Pressure Fuel Pump
Raises fuel to the extreme pressures direct injection and common-rail diesel require. Depends entirely on adequate low-pressure supply — running one short of fuel is how it destroys itself, and the resulting metal debris contaminates the whole fuel system.
Also known as: hpfp, high pressure pump, hp pump, cp4, cp3
Referenced by 79 codes
Codes involving this component (79)
- P0093 Fuel System Leak Detected — Large Leak Stop driving Critical
- P0001 Fuel Volume Regulator A Control Circuit/Open Stop driving High
- P0002 Fuel Volume Regulator A Control Circuit Range/Performance Stop driving High
- P0087 Fuel Rail/System Pressure — Too Low Bank 1 Stop driving High
- P0088 Fuel Rail/System Pressure — Too High Bank 1 Stop driving High
- P0089 Fuel Pressure Regulator A Performance High
- P008A Low Pressure Fuel System Pressure - Too Low High
- P0094 Fuel System Leak Detected — Small Leak Stop driving High
- P00C6 Fuel Rail Pressure Too Low - Engine Cranking Bank 1 High
- P0148 Fuel Delivery Error Stop driving High
- P0149 Fuel Timing Error Stop driving High
- P016F Closed Loop Fuel Pressure Control At Limit - Pressure Too Low High
- P0191 Fuel Rail Pressure Sensor Circuit Range/Performance Bank 1 Stop driving High
- P0216 Injector/Injection Timing Control Circuit Stop driving High
- P02D3 Cylinder 4 Fuel Injector A Offset Learning At Max Limit High
- P2269 Water in Fuel Condition — Sensor A Stop driving High
- P2293 Fuel Pressure Regulator B Performance High
- P2294 Fuel Pressure Regulator B Control Circuit/Open High
- P2539 Low Pressure Fuel System Sensor Circuit High
- P2540 Low Pressure Fuel System Sensor Circuit Range/Performance Stop driving High
- P2541 Low Pressure Fuel System Sensor Circuit Low High
- P2542 Low Pressure Fuel System Sensor Circuit High High
- P2543 Low Pressure Fuel System Sensor Circuit Intermittent High
- P2635 Fuel Pump A Low Flow or Performance Stop driving High
- P009E Fuel Pressure Relief Control Performance/Stuck Off Moderate
Other components in Fuel Delivery
- Fuel Injector 530
- Fuel Injector Control Module 148
- Alternative Fuel Control Module 135
- Fuel Rail Pressure Sensor 77
- Fuel Pump 48
- Fuel Volume Regulator 46
- Fuel Temperature Sensor 45
- Fuel Filter 43
- Fuel Level Sensor 27
- Fuel Pump Control Module 22
- Fuel Shutoff Valve 14
- Injection Pump 13
- Injection Control Pressure Sensor 12
- Fuel Composition Sensor 11
- Injection Pressure Regulator 10
- High-Pressure Oil Pump 8
- Air Assist Control Valve 6
- Water in Fuel Sensor 6
- Fuel Transfer Pump 6
- Fuel Supply Heater 3
- Fuel Pump Strainer 2
Information, not instruction
CarGeek is a reference, not a service manual. Its pages are written from public sources and from what other people have found, never from a manufacturer's own service information, so they can be wrong or incomplete for your particular vehicle. Some of what they describe carries real risk: high voltage, fuel under pressure, stored energy, hot and moving parts.
Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Working on this component
Be the first to write this up
Nothing posted about this yet. Whatever you found is worth writing down — even a dead end saves someone the same afternoon.
What makes one worth reading:
- The car — make, model, year and engine. The same fault behaves differently on each.
- What you measured, not only what you replaced.
- What actually fixed it — or that nothing did, which is worth knowing too.
Sign in or create an account to add what you found about High-Pressure Fuel Pump.