Engine-Codes - Buick - P1131 BUICK

P1131 BUICK - HO2S Circuit Low Variance Bank 1 Sensor 2

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

How is the P1131 BUICK code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the P1131 BUICK code

Labor: 1.0

The cost to diagnose the P1131 BUICK code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1131 BUICK Meaning

A Heated Exhaust Oxygen (HO2S) sensor indicating lean at the end of a test is trying to correct for an over-rich condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of time.

More Information

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