AutoCodes – Chevrolet – P1130 Chevrolet

P1130 Chevrolet Code - HO2S Circuit Low Variance Bank 1 Sensor 1

Quick Answer

The Powertrain Control Module (PCM) monitors the Heated Oxygen Sensor (HO2S) activity for 60 seconds. Common causes include Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1, Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 harness is open or shorted, Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1130 Chevrolet indicates HO2S Circuit Low Variance Bank 1 Sensor 1.
Common causes: Common causes include Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1, Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 harness is open or shorted, Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 11,641

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 17, 2021

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
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Code P1130 Chevrolet Description

The Powertrain Control Module (PCM) monitors the Heated Oxygen Sensor (HO2S) activity for 60 seconds. During this period, the PCM counts the number of times that the HO2S switches from rich to lean, and from lean to rich.

OBDII Code P1130 Chevrolet - HO2S Circuit Low Variance Bank 1 Sensor 1 - AutoCodes.com — P1130 Chevrolet Code - HO2S Circuit Low Variance Bank 1 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P1130 Chevrolet?

Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 harness is open or shorted
Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 circuit poor electrical connection

How to Fix the DTC P1130 Chevrolet?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1130 Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.