P0091moderate severityPowertrain
Fuel Pressure Regulator 1 Control Circuit Low
on 2014 Audi A6 3.0L Supercharged V6 · AWD
What this code means
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.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1