P128C 2014 Chevrolet Silverado Code - Fuel Rail Temperature Sensor 1 Signal Message Counter Incorrect
Quick Answer
The fuel rail pressure sensor transmits fuel pressure and temperature information by serial data. Common causes include Faulty Fuel Rail Temperature Sensor 1, Fuel Rail Temperature Sensor 1 harness is open or shorted, Fuel Rail Temperature Sensor 1 circuit poor electrical connection. 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
- P128C 2014 Chevrolet Silverado indicates Fuel Rail Temperature Sensor 1 Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty Fuel Rail Temperature Sensor 1, Fuel Rail Temperature Sensor 1 harness is open or shorted, Fuel Rail Temperature Sensor 1 circuit poor electrical connection.
- 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 P128C 2014 Chevrolet Silverado Description
What are the Possible Causes of the DTC P128C 2014 Chevrolet Silverado?
- Faulty Fuel Rail Temperature Sensor 1
- Fuel Rail Temperature Sensor 1 harness is open or shorted
- Fuel Rail Temperature Sensor 1 circuit poor electrical connection
How to Fix the DTC P128C 2014 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 P128C 2014 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.
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Frequently Asked Questions about P128C 2014 Chevrolet Silverado Code
What does the OBDII code P128C mean on a 2014 Chevrolet Silverado?
P128C indicates an issue with the Fuel Rail Temperature Sensor 1, where the signal message counter is detected as incorrect by the engine control module (ECM).
What are the common symptoms of code P128C in a 2014 Chevy Silverado?
Common symptoms include a check engine light, reduced engine performance, poor fuel efficiency, or difficulty starting the vehicle.
What causes the P128C code to appear?
Possible causes include a malfunctioning fuel rail temperature sensor, damaged wiring or connectors, or a software issue in the ECM.
Can I drive my 2014 Chevrolet Silverado with the P128C code?
It’s not recommended to drive with this code active, as it may lead to poor engine performance or further damage to fuel system components.
How do I diagnose the P128C code on my Silverado?
Diagnosis involves using a scan tool to confirm the code, inspecting the fuel rail temperature sensor and its wiring, and checking for any related software updates.
Is the fuel rail temperature sensor difficult to replace?
Replacing the fuel rail temperature sensor is typically straightforward but may require basic tools and knowledge of the sensor’s location on the fuel rail.
Could a faulty ECM cause the P128C code?
While rare, a malfunctioning ECM could misinterpret the sensor signal, leading to the P128C code.
How much does it cost to repair the P128C code?
Repair costs can vary but generally range from $100 to $300, depending on whether the sensor, wiring, or ECM needs attention.
Can a loose or corroded connector trigger code P128C?
Yes, a loose, corroded, or damaged connector can disrupt the signal and cause the P128C code to set.
Will clearing the code with a scan tool fix the issue?
Clearing the code may temporarily turn off the check engine light, but the underlying issue must be resolved to prevent the code from returning.
Discuss the causes and fixes for P128C 2014 Chevrolet Silverado OBDII Code
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