AutoCodes – Hummer – P0130 Hummer

P0130 Hummer Code - HO2S Circuit Sensor 1

Quick Answer

The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. Common causes include Faulty Front Heated Oxygen Sensor Bank 1, Front Heated Oxygen Sensor Bank 1 harness is open or shorted, Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P0130 Hummer indicates HO2S Circuit Sensor 1.
Common causes: Common causes include Faulty Front Heated Oxygen Sensor Bank 1, Front Heated Oxygen Sensor Bank 1 harness is open or shorted, Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 4,508

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 26, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0130 Hummer Description

The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the Engine Control Module (ECM). The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical change from 1V to 0V.

OBDII Code P0130 Hummer - HO2S Circuit Sensor 1 - AutoCodes.com — P0130 Hummer Code - HO2S Circuit Sensor 1

What does this mean?

What are the Possible Causes of the DTC P0130 Hummer?

Faulty Front Heated Oxygen Sensor Bank 1
Front Heated Oxygen Sensor Bank 1 harness is open or shorted
Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection
Inappropriate fuel pressure
Faulty fuel injectors
Intake air leaks may be faulty
Exhaust gas leaks

How to Fix the DTC P0130 Hummer?

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 does this mean?

Code Tech Notes

Replacing the O2 Sensor 1 usually takes care of the problem

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0130 Hummer 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.

Frequently Asked Questions about P0130 Hummer Code

1. What does the OBDII code P0130 for a Hummer indicate?

The P0130 code for a Hummer indicates an issue with the HO2S (Heated Oxygen Sensor) Circuit Sensor 1, also known as the upstream oxygen sensor on bank 1.

2. What are the common symptoms of a P0130 code in a Hummer?

Common symptoms of a P0130 code in a Hummer include poor fuel economy, rough idling, engine hesitation, and an illuminated Check Engine Light.

3. What are the possible causes of a P0130 code in a Hummer?

Possible causes of a P0130 code in a Hummer include a faulty oxygen sensor, wiring issues in the sensor circuit, exhaust leaks, or a problem with the engine's air-fuel ratio.

4. How can I diagnose a P0130 code in my Hummer?

Diagnosing a P0130 code involves using an OBDII scanner to retrieve the code, inspecting the oxygen sensor and its wiring for damage, and checking for exhaust leaks near the sensor.

5. Can I continue driving my Hummer with a P0130 code?

While it may be possible to drive with a P0130 code, it is not recommended as it can lead to decreased fuel efficiency and potential damage to other engine components over time.

6. Is it possible to repair a P0130 code in a Hummer myself?

Repairing a P0130 code in a Hummer may be possible for those with automotive repair experience. However, it is recommended to consult a professional mechanic for accurate diagnosis and repair.

7. How much does it typically cost to fix a P0130 code in a Hummer?

The cost of fixing a P0130 code in a Hummer can vary depending on the exact cause of the issue. It may range from $100 to $300 for parts and labor.

8. Can a P0130 code be triggered by a loose gas cap in a Hummer?

While a loose gas cap can trigger some codes related to the evaporative emissions system, it is unlikely to directly cause a P0130 code related to the HO2S Circuit Sensor 1.

9. Will a P0130 code reset itself in a Hummer?

If the underlying issue causing the P0130 code in a Hummer is not addressed, the code may temporarily clear itself but is likely to reappear once the problem persists.

10. How long does it take to repair a P0130 code in a Hummer?

The repair time for a P0130 code in a Hummer can vary based on the specific cause of the issue and the availability of parts. In general, it may take a few hours to a full day for diagnosis and repair.