Engine-CodesChevrolet – P1192 2014 Chevrolet Silverado

P1192 2014 Chevrolet Silverado Code - O2 Low Reference Circuit (NOx Sensor 1)

Quick Answer

The P1192 code on a 2014 Chevrolet Silverado indicates a problem with the O2 low reference circuit for NOx Sensor 1. Common causes include Faulty NOx sensor, Damaged wiring or connectors, Corrosion in the electrical connections. 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
P1192 2014 Chevrolet Silverado indicates O2 Low Reference Circuit (NOx Sensor 1).
Common causes
Common causes include Faulty NOx sensor, Damaged wiring or connectors, Corrosion in the electrical connections.
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.
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code P1192 2014 Chevrolet Silverado Description

The P1192 code on a 2014 Chevrolet Silverado indicates a problem with the O2 low reference circuit for NOx Sensor 1. This sensor is responsible for monitoring the levels of nitrogen oxide (NOx) in the exhaust gases to ensure compliance with emissions standards. The O2 low reference circuit provides a baseline voltage for the sensor to compare the oxygen levels in the exhaust gases accurately. When this circuit malfunctions, it can lead to inaccurate readings and affect the vehicle's performance.

OBDII Code P1192 2014 Chevrolet Silverado - O2 Low Reference Circuit (NOx Sensor 1)
P1192 2014 Chevrolet Silverado Code - O2 Low Reference Circuit (NOx Sensor 1)

Common Causes of P1192 2014 Chevrolet Silverado

  1. Faulty NOx sensor
  2. Damaged wiring or connectors
  3. Corrosion in the electrical connections
  4. ECM software issues
  5. Exhaust leaks near the sensor

Symptoms of P1192 2014 Chevrolet Silverado

  1. Check engine light illuminated
  2. Reduced fuel efficiency
  3. Rough idling or stalling
  4. Failed emissions test
  5. Decreased engine performance

How to Fix P1192 2014 Chevrolet Silverado

  1. Diagnose the issue by using a scan tool to retrieve the trouble code and inspect the wiring and connectors for any visible damage.
  2. Test the NOx sensor's functionality using a multimeter to check for proper voltage readings.
  3. Replace the NOx sensor if it is found to be faulty, ensuring proper installation and connection.
  4. Repair or replace any damaged wiring or connectors in the O2 low reference circuit.
  5. Clear the trouble code and perform a test drive to verify that the issue has been resolved.

Cost to Fix P1192 2014 Chevrolet Silverado

The typical repair costs for addressing a P1192 code on a 2014 Chevrolet Silverado can range from $200 to $500, including parts and labor. However, specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check local rates for a more precise estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.

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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 P1192 2014 Chevrolet Silverado Code

What does the OBDII code P1192 mean for a 2014 Chevrolet Silverado?

The P1192 code indicates an issue with the O2 Low Reference Circuit for NOx Sensor 1, which monitors nitrogen oxide levels in the exhaust.

What are the common symptoms of code P1192 in a 2014 Chevrolet Silverado?

Symptoms may include the check engine light turning on, reduced fuel efficiency, poor engine performance, or emissions test failure.

What causes the P1192 code to appear in a 2014 Chevrolet Silverado?

Common causes include a faulty NOx sensor, damaged wiring or connectors in the O2 reference circuit, or a malfunctioning engine control module (ECM).

Can a bad NOx sensor cause the P1192 code?

Yes, a malfunctioning NOx sensor is a primary cause of the P1192 code in the 2014 Chevrolet Silverado.

How do you diagnose the P1192 code?

Diagnosis involves checking the NOx sensor, inspecting the wiring and connectors for damage, and using a scan tool to monitor sensor readings and perform circuit tests.

Can I drive my 2014 Chevrolet Silverado with the P1192 code?

Driving with the P1192 code is not recommended, as it can lead to poor performance, increased emissions, and potential damage to the catalytic converter.

How do you fix the P1192 code on a 2014 Chevrolet Silverado?

Repairs may include replacing the NOx sensor, repairing or replacing damaged wiring, or reprogramming or replacing the ECM if needed.

How much does it cost to fix the P1192 code?

Repair costs can vary but typically range from $200 to $600, depending on whether the NOx sensor, wiring, or ECM needs replacement.

Can a loose connection trigger the P1192 code?

Yes, a loose or corroded connection in the O2 reference circuit can cause the P1192 code to appear.

Does the P1192 code affect emissions testing?

Yes, the P1192 code can cause the vehicle to fail emissions testing due to incorrect NOx sensor readings affecting exhaust system performance.

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