Fuel pressure and fuel pump
P0627
Fuel Pump "A" Control Circuit/Open
Fuel pressure isn't what the computer is asking for, or the pump or pressure sensor circuit has a fault.
Fix it soon
Can I keep driving? For a short while, gently. Have it checked in the next few days, and stop if the car feels, sounds or smells different. The engine may hesitate, lose power or stall, and it may not restart. Don't set out on a long trip with this code.
Common causes
- A weak fuel pump
- A clogged fuel filter
- A failing fuel pressure regulator or sensor
- A fuel pump relay, fuse or wiring fault
- On direct-injection engines, a worn high-pressure pump
Listed roughly from most to least likely. The same code can have different causes on different cars.
What to do
- Don't run the tank near empty. A hot, starved pump fails faster.
- Have the fuel pressure measured with a gauge. Guessing gets expensive.
- Replace the fuel filter if it's overdue and your car has a serviceable one.
General guidance. Your owner's manual wins. If a red warning light is on or the car drives differently, stop safely and get help.
Related codes
- P0087Fuel Rail/System Pressure Too Low
- P0088Fuel Rail/System Pressure Too High
- P0190Fuel Rail Pressure Sensor Circuit
- P0191Fuel Rail Pressure Sensor Circuit Range/Performance
- P0230Fuel Pump Primary Circuit
Track this automatically in Tagwell Auto
Tagwell Auto keeps your car's service dates and mileage, so when a code shows up you know what was done last. With a Bluetooth reader for the car's diagnostic port (called OBD-II), the phone app can read the code itself.