O2 Sensor Circuit Slow Response (Bank 1, Sensor 1)

What does this mean?

Code P0133 means the upstream O2 sensor on Bank 1 is switching between rich and lean too slowly, indicating a sluggish sensor response.

Disclaimer: This diagnostic code is part of the standard OBD2 system and can apply to Infiniti Qx50 models manufactured from 1996 to 2026. However, please note that the presence of this specific code depends on your vehicle's exact engine configuration, options, and production year.