P0191 2016 Chevrolet Silverado Code - Fuel Rail Pressure Sensor Performance
Quick Answer
The Engine Control Module (ECM) uses the Fuel Rail Pressure (FRP) sensor to constantly adjust the high-pressure fuel pump's feed rate so that the ideal pressure is permanently maintained in the high-pressure section (between the high-pressure fuel pump and the injectors) by means of closed-loop control. Common causes include Low or no fuel, Faulty Fuel Rail Pressure (FRP) Sensor, Fuel Rail Pressure harness is open or shorted. 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
- P0191 2016 Chevrolet Silverado indicates Fuel Rail Pressure Sensor Performance.
- Common causes
- Common causes include Low or no fuel, Faulty Fuel Rail Pressure (FRP) Sensor, Fuel Rail Pressure harness is open or shorted.
- 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.
Code P0191 2016 Chevrolet Silverado Description
What are the Possible Causes of the DTC P0191 2016 Chevrolet Silverado?
- Low or no fuel
- Faulty Fuel Rail Pressure (FRP) Sensor
- Fuel Rail Pressure harness is open or shorted
- Fuel Rail Pressure circuit poor electrical connection
- Faulty Fuel Pump
How to Fix the DTC P0191 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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0191 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 P0191 2016 Chevrolet Silverado code?
Need more information on how to fix the P0191 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
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Frequently Asked Questions about P0191 2016 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code P0191 in a 2016 Chevrolet Silverado?
The common symptoms of OBDII code P0191 in a 2016 Chevrolet Silverado include rough idle, engine stalling, loss of power, and poor fuel efficiency.
2. What does OBDII code P0191 indicate in a 2016 Chevrolet Silverado?
OBDII code P0191 in a 2016 Chevrolet Silverado indicates a problem with the fuel rail pressure sensor performance, specifically indicating that the signal is out of range.
3. What are the possible causes of OBDII code P0191 in a 2016 Chevrolet Silverado?
Possible causes of OBDII code P0191 in a 2016 Chevrolet Silverado include a faulty fuel rail pressure sensor, wiring issues, fuel pressure regulator problems, or issues with the fuel pump.
4. How can I diagnose the cause of OBDII code P0191 in my 2016 Chevrolet Silverado?
To diagnose the cause of OBDII code P0191 in your 2016 Chevrolet Silverado, you can use a scan tool to check the fuel rail pressure sensor readings, inspect the wiring for any damage or corrosion, and test the fuel pressure regulator and fuel pump.
5. Can I drive my 2016 Chevrolet Silverado with OBDII code P0191?
It is not recommended to drive your 2016 Chevrolet Silverado with OBDII code P0191, as it can lead to engine performance issues and potentially cause further damage to the vehicle.
6. How can I repair OBDII code P0191 in my 2016 Chevrolet Silverado?
To repair OBDII code P0191 in your 2016 Chevrolet Silverado, you may need to replace the fuel rail pressure sensor, repair any damaged wiring, or address any issues with the fuel pressure regulator or fuel pump.
7. Is it safe to reset the OBDII code P0191 on my 2016 Chevrolet Silverado?
While you can reset the OBDII code P0191 on your 2016 Chevrolet Silverado, it is important to address the underlying issue causing the code to prevent it from reoccurring.
8. Will OBDII code P0191 cause my check engine light to illuminate in a 2016 Chevrolet Silverado?
Yes, OBDII code P0191 will trigger the check engine light to illuminate in your 2016 Chevrolet Silverado to alert you of a potential issue with the fuel rail pressure sensor performance.
9. How much does it cost to repair OBDII code P0191 in a 2016 Chevrolet Silverado?
The cost to repair OBDII code P0191 in a 2016 Chevrolet Silverado can vary depending on the underlying issue, but it may range from $150 to $400 for parts and labor.
10. Can a DIY enthusiast fix OBDII code P0191 in a 2016 Chevrolet Silverado?
A DIY enthusiast with the necessary tools and knowledge may be able to fix OBDII code P0191 in a 2016 Chevrolet Silverado by following repair guides and procedures specific to their vehicle model.
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