P0089moderate severityPowertrain
Fuel Pressure Regulator 1 Performance
on 2016 Chevrolet Impala 3.6L V6 LFX · AWD
What this code means
The fuel pressure regulator is not maintaining the commanded fuel pressure.
Symptoms
- Check Engine Light
- Fluctuating idle
- Hesitation
- Poor fuel economy
Common causes
- Faulty fuel pressure regulator
- Vacuum line issue
- Fuel pump weak
- Restricted fuel supply
Diagnostic steps
- Monitor fuel pressure at idle and under load
- Test vacuum line to regulator
- Check fuel pump output
- Inspect fuel lines
Repair notes
Replace fuel pressure regulator.
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