P0091
Fuel Pressure Regulator 1 Control Circuit Low
1997-2000 BMW 528i E39 2.8L I6 🇬🇧
Moderate SeverityPowertrain
Description
Low voltage in the fuel pressure regulator control circuit.
Symptoms
- Check Engine Light
- Low fuel pressure
Common Causes
- Short to ground
- Faulty regulator
Diagnostic Steps
- Test voltage
- Check for shorts
Repair Notes
Repair or replace.
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
P0091 on Other Vehicles
Common Questions
What does code P0091 mean on a 1997-2000 BMW 528i E39?
P0091 stands for "Fuel Pressure Regulator 1 Control Circuit Low". Low voltage in the fuel pressure regulator control circuit.
What are the symptoms of P0091 on a BMW 528i E39?
Common symptoms of P0091 include: Check Engine Light, Low fuel pressure.
What causes P0091 on a 1997-2000 BMW 528i E39?
Common causes of P0091 include: Short to ground, Faulty regulator.