P1129 — Volkswagen — Long Term Fuel Trim Bank 2 System Too Rich

P1129 (Volkswagen): Long Term Fuel Trim Bank 2 System Too Rich — what it means, the affected system and what to check before replacing parts.

Meaning, symptoms, causes and checks

Long Term Fuel Trim Bank 2 System Too Rich. Source catalogue definition; confirm applicability using vehicle service information.

Affected system: Powertrain