P2191 Code Meaning, Causes, Symptoms & Tech Notes
The P2191 diagnostic trouble code (DTC) indicates that the engine control module (ECM) has detected a lean air-fuel mixture at higher load conditions on bank 1 of the engine. This means that there is too …
How to fix P2191 Engine Error Code With 2 Methods - YouTube
This code signals a System Too Lean at Higher Load – Bank 1, meaning your engine is getting too much air or not enough fuel. Don’t worry — we’ve got 2 simple methods to help you fix it ...
P2191 – Meaning, Symptoms, Causes & How to Fix It
Nov 28, 2025 · Learn what DTC P2191 means, common symptoms, likely causes, diagnostic steps, repair costs, and whether it’s safe to keep driving.
P2191 System Too Lean At Higher Load Bank 1 - OBD-Codes.com
This code is set for Bank 1, which is the bank of cylinders that includes cylinder number 1. This can be a mechanical or an electrical circuit fault, depending upon vehicle manufacturer and fuel system.
P2191 Trouble Code: Meaning, Symptoms, Causes & Fixes
May 21, 2024 · Got a P2191 code? This guide covers what it means, symptoms to look out for, common causes, and how to fix it. I’ve fixed P2191 issues many times before. We’ll dig into why the P2191 …
P2191 Code: System Too Lean At Higher Load Bank 1 - CarParts.com
Sep 4, 2023 · The P2191 code stands for “Manifold Absolute Pressure/Mass Air Flow – Throttle Position.” It’s logged once the PCM detects a lean mixture in the system. Some issues that can …
P2191 - System Too Lean at Higher Load - RepairPal
Learn about P2191 symptoms, causes, and potential solutions from the diagnostic experts at RepairPal.
P2191 Code Symptoms, Causes, Diagnosis & Repair Guide for OBD-II
P2191 means “System Too Lean at Higher Load Bank 1” – the ECM detects a lean mixture when the engine is under load. Typical signs: check‑engine light, loss of power, hesitation or stumble during …
Code P2191 System Too Lean At Higher Load Bank 1 - AutoCodes
How to Fix the DTC P2191? Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect …
OBD2 Code P2191 – Causes, Symptoms, and Repairs
Jun 13, 2025 · Learn all about the P2191 code, what causes system too lean at higher load, and how to diagnose and fix common issues to maintain optimal engine performance.