P0151
O2 Sensor Circuit Low Voltage Bank 2 Sensor 1
2000-2006 Mazda MPV 2.5L V6
Moderate SeverityPowertrainGeneric (SAE)
Description
The upstream O2 sensor voltage on Bank 2 is staying low.
Symptoms
- Check Engine Light
- Lean running Bank 2
- Rough idle
Common Causes
- Vacuum leak Bank 2
- Faulty sensor
- Exhaust leak
- Low fuel pressure
Diagnostic Steps
- Check vacuum leaks Bank 2
- Monitor sensor voltage
- Test fuel pressure
Repair Notes
Fix leak or replace sensor.
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
P0151 on Other Vehicles
Common Questions
What does code P0151 mean on a 2000-2006 Mazda MPV?
P0151 stands for "O2 Sensor Circuit Low Voltage Bank 2 Sensor 1". The upstream O2 sensor voltage on Bank 2 is staying low.
What are the symptoms of P0151 on a Mazda MPV?
Common symptoms of P0151 include: Check Engine Light, Lean running Bank 2, Rough idle.
What causes P0151 on a 2000-2006 Mazda MPV?
Common causes of P0151 include: Vacuum leak Bank 2, Faulty sensor, Exhaust leak, Low fuel pressure.