AutoCodes – GMC – P1130 GMC

P1130 GMC 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 GMC 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.

Save to My Repairs Step-by-Step Diagnostic Guide My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 8,572

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
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

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

What does this mean?

What are the Possible Causes of the DTC P1130 GMC?

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 GMC?

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 GMC 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.

Need more information about the P1130 GMC code?

Need more information on how to fix the P1130 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1130 GMC code diagnosed by a professional: Find a repair shop in your area

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.

Frequently Asked Questions about P1130 GMC Code

1. What are common symptoms of OBDII code P1130 GMC?

- Common symptoms include poor fuel economy, rough idling, engine misfires, and a noticeable decrease in engine performance.

2. What does the OBDII code P1130 GMC indicate?

- The code P1130 indicates an issue with the HO2S (Heated Oxygen Sensor) circuit low variance for Bank 1 Sensor 1 in a GMC vehicle.

3. What are the possible causes of OBDII code P1130 GMC?

- Possible causes include a faulty oxygen sensor, wiring or connector issues, vacuum leaks, exhaust leaks, or issues with the fuel system.

4. How can I diagnose the OBDII code P1130 GMC?

- Diagnosis typically involves checking the oxygen sensor's wiring and connectors, performing a visual inspection for leaks, and using a scan tool to monitor sensor data.

5. Can I still drive my GMC vehicle with the P1130 code present?

- It is generally not recommended to drive with the P1130 code present, as it can lead to decreased fuel efficiency and potential damage to the engine over time.

6. How can I repair the OBDII code P1130 GMC?

- Repair options may include replacing the Bank 1 Sensor 1 oxygen sensor, repairing damaged wiring or connectors, fixing vacuum or exhaust leaks, or addressing fuel system issues.

7. Is it possible to reset the P1130 code without fixing the underlying issue?

- While clearing the code may temporarily turn off the check engine light, it will not address the root cause of the problem, and the code is likely to reappear.

8. How much does it typically cost to repair OBDII code P1130 GMC?

- The cost of repairs can vary depending on the specific issue causing the code, but it may range from $100 to $500 or more, including parts and labor.

9. Can a DIY enthusiast fix the P1130 code in a GMC vehicle?

- Depending on the skill level and tools available, some DIY enthusiasts may be able to address the P1130 code by replacing the oxygen sensor or fixing wiring issues.

10. How can I prevent the OBDII code P1130 GMC from recurring in the future?

- Regular maintenance, including checking and replacing oxygen sensors as recommended, addressing any leaks promptly, and ensuring proper fuel system function, can help prevent the code from recurring.