P127D 2015 Chevrolet Silverado Code - Fuel Rail Pressure Sensor 2 Circuit High Voltage
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 Sensor 2, Fuel Rail Pressure Sensor 2 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
- P127D 2015 Chevrolet Silverado indicates Fuel Rail Pressure Sensor 2 Circuit High Voltage.
- Common causes
- Common causes include Low or no fuel, Faulty Fuel Rail Pressure Sensor 2, Fuel Rail Pressure Sensor 2 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 P127D 2015 Chevrolet Silverado Description
What are the Possible Causes of the DTC P127D 2015 Chevrolet Silverado?
- Low or no fuel
- Faulty Fuel Rail Pressure Sensor 2
- Fuel Rail Pressure Sensor 2 harness is open or shorted
- Fuel Rail Pressure Sensor 2 circuit poor electrical connection
- Faulty Fuel Pump
How to Fix the DTC P127D 2015 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 P127D 2015 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 P127D 2015 Chevrolet Silverado code?
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Frequently Asked Questions about P127D 2015 Chevrolet Silverado Code
1. What does the OBDII code P127D mean on a 2015 Chevrolet Silverado?
P127D indicates that the fuel rail pressure sensor 2 circuit is detecting a voltage that is higher than the expected range, which may affect fuel delivery.
2. What are the symptoms of the P127D code in a 2015 Silverado?
Symptoms may include rough idling, reduced engine power, poor fuel economy, difficulty starting, or the Check Engine Light being illuminated.
3. What causes the P127D code to appear?
Common causes include a faulty fuel rail pressure sensor, damaged wiring or connectors in the sensor circuit, or issues with the vehicle's powertrain control module (PCM).
4. How can I diagnose the P127D code?
Use an OBDII scanner to confirm the code, inspect the fuel rail pressure sensor and its wiring for damage, and test the sensor's voltage readings with a multimeter.
5. Can I drive my 2015 Silverado with the P127D code active?
It is not recommended to drive for extended periods as this code can lead to poor engine performance and potentially damage other components.
6. How do you fix the P127D code on a 2015 Silverado?
Repairs may include replacing the fuel rail pressure sensor, repairing or replacing damaged wiring, or reprogramming the PCM if necessary.
7. How much does it cost to fix the P127D code?
Repair costs can vary but typically range from $150 to $400, depending on whether the issue is with the sensor itself or the wiring.
8. Can a dirty fuel filter cause the P127D code?
While a dirty fuel filter can restrict fuel flow, it is unlikely to cause this specific high-voltage circuit error.
9. Will resetting the Check Engine Light fix the P127D code?
Resetting the Check Engine Light may temporarily clear the code, but the underlying issue must be repaired to prevent the code from returning.
10. Is the P127D code covered under warranty for a 2015 Silverado?
It depends on your vehicle’s warranty coverage. Check with your Chevrolet dealer to see if the repair falls under the powertrain or emissions warranty.
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