P1155 — Chevrolet — HO2S Lean Average Bank 2 Sensor 1

P1155 (Chevrolet): HO2S Lean Average Bank 2 Sensor 1 — what it means, the affected system and what to check before replacing parts.

Meaning, symptoms, causes and checks

HO2S Lean Average Bank 2 Sensor 1. Source catalogue definition; confirm applicability using vehicle service information.

Affected system: Powertrain