P1150moderate severityPowertrain
Air/Fuel Sensor Circuit Range Bank 1 Sensor 2
on 2008 Lexus IS 250 2.5L V6 · RWD
What this code means
The downstream A/F sensor Bank 1 Sensor 2 is outside expected range.
Symptoms
- CEL
- Poor fuel economy
- Increased emissions
- Rough running
Common causes
- Faulty sensor
- Exhaust leak
- Contaminated sensor
- Catalytic converter issue
Diagnostic steps
- Test sensor output
- Check exhaust
- Inspect wiring
- Monitor fuel trims
Repair notes
Replace downstream A/F sensor.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1