P0133 2016 Chevrolet Silverado Code - HO2S Slow Response Bank 1 Sensor 1
Quick Answer
The Heated Oxygen Sensors (HO2S) are used for fuel control and catalyst monitoring. Common causes include Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1, Heated Oxygen Sensor Bank 1 Sensor 1 harness is open or shorted, Heated Oxygen Sensor Bank 1 Sensor 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
- P0133 2016 Chevrolet Silverado indicates HO2S Slow Response Bank 1 Sensor 1.
- Common causes
- Common causes include Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1, Heated Oxygen Sensor Bank 1 Sensor 1 harness is open or shorted, Heated Oxygen Sensor Bank 1 Sensor 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.
Code P0133 2016 Chevrolet Silverado Description
The heating elements inside each HO2S heat the sensor to bring the sensor up to operating conditions faster. This allows the system to enter Closed Loop earlier and the ECM to calculate the air-to-fuel ratio sooner.
The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the HO2S 1 rich-to-lean or lean-to-rich average response time is greater than a calibrated value for greater than 60s.
What are the Possible Causes of the DTC P0133 2016 Chevrolet Silverado?
- Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
- Heated Oxygen Sensor Bank 1 Sensor 1 harness is open or shorted
- Heated Oxygen Sensor Bank 1 Sensor 1 circuit poor electrical connection
- Low or high fuel system pressure
- Fuel contamination
- Faulty fuel injectors
- Exhaust gas leaks
- Engine vacuum leaks
How to Fix the DTC P0133 2016 Chevrolet Silverado?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0133 2016 Chevrolet Silverado 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 P0133 2016 Chevrolet Silverado code?
Need more information on how to fix the P0133 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0133 2016 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0133 2016 Chevrolet Silverado Code
1. What does the OBDII code P0133 mean on a 2016 Chevrolet Silverado?
P0133 indicates a "HO2S Slow Response Bank 1 Sensor 1," meaning the upstream oxygen sensor on Bank 1 is not responding quickly enough to changes in air-fuel ratio.
2. What are the common symptoms of code P0133 in a 2016 Silverado?
Symptoms may include poor fuel economy, rough idle, hesitation during acceleration, and the check engine light being illuminated.
3. What causes the P0133 code on a Chevy Silverado?
Common causes include a faulty oxygen sensor, exhaust leaks, wiring issues, or a dirty air filter affecting engine performance.
4. How do I identify Bank 1 Sensor 1 on a 2016 Chevrolet Silverado?
Bank 1 refers to the side of the engine with cylinder 1, and Sensor 1 is the upstream oxygen sensor located before the catalytic converter.
5. Can a bad oxygen sensor cause code P0133?
Yes, a faulty or aging oxygen sensor can lead to slow response times and trigger the P0133 code.
6. What should I check first when diagnosing P0133 on a Silverado?
Start by inspecting the oxygen sensor and its wiring for damage, checking for exhaust leaks, and ensuring the air filter is clean.
7. How do I fix the P0133 code on a 2016 Chevrolet Silverado?
Common fixes include replacing the oxygen sensor, repairing damaged wiring, sealing exhaust leaks, or cleaning/replacing the air filter.
8. Can driving with a P0133 code damage my Silverado?
While it may not cause immediate damage, prolonged driving with this code can lead to increased emissions and reduced fuel efficiency.
9. How much does it cost to repair a P0133 code on a Chevy Silverado?
Replacing an oxygen sensor typically costs $150–$300, depending on labor rates and part prices.
10. Can clearing the P0133 code solve the issue on a Silverado?
Clearing the code doesn’t fix the underlying issue. Proper diagnosis and repairs are necessary to prevent the code from returning.
Discuss the causes and fixes for P0133 2016 Chevrolet Silverado OBDII Code
Code P0133 2016 Chevrolet Silverado comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
