P0090moderate severityPowertrain
Fuel Pressure Regulator 1 Control Circuit
on 2014 Audi A6 3.0L Supercharged V6 · AWD
What this code means
The PCM detected a malfunction in the fuel pressure regulator control circuit.
Symptoms
- Check Engine Light
- Unstable fuel pressure
- Poor running
Common causes
- Faulty regulator solenoid
- Wiring damage
- PCM failure
Diagnostic steps
- Test solenoid resistance
- Check wiring
- Test PCM output
Repair notes
Replace regulator or repair wiring.
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