Technical Description
The oxygen sensor circuit on Bank 1, Sensor 1 is responding slowly.
What does that mean?
This is a generic powertrain DTC (code) that applies to all OBD-II vehicles. However, the specific repair steps may vary depending on the vehicle.
This trouble code pertains to the front oxygen sensor on Bank 1.
This code indicates that the engine air-fuel ratio is not being adjusted as expected by the oxygen sensor signal or the ECM, particularly when the engine is warmed up or under normal use.
Symptoms
You may not notice any drivability issues, although there could be symptoms present.
Causes
A code P0133 may indicate one or more of the following:
Possible Solutions
The simplest approach is to reset the code and see if it reappears.
If the code returns, the most likely cause is a faulty front Bank 1 oxygen sensor. However, you should also consider these potential solutions:
