P128F 2016 Chevrolet Silverado Code - Fuel Rail Pressure Sensors 1 and 2 Signals 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 Pressure Sensor, Fuel Rail Pressure Sensor harness is open or shorted, Fuel Rail Pressure Sensor 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
- P128F 2016 Chevrolet Silverado indicates Fuel Rail Pressure Sensors 1 and 2 Signals Message Counter Incorrect.
- Common causes
- Common causes include Faulty Fuel Rail Pressure Sensor, Fuel Rail Pressure Sensor harness is open or shorted, Fuel Rail Pressure Sensor 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 P128F 2016 Chevrolet Silverado Description
What are the Possible Causes of the DTC P128F 2016 Chevrolet Silverado?
- Faulty Fuel Rail Pressure Sensor
- Fuel Rail Pressure Sensor harness is open or shorted
- Fuel Rail Pressure Sensor circuit poor electrical connection
How to Fix the DTC P128F 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 P128F 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.
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Frequently Asked Questions about P128F 2016 Chevrolet Silverado Code
What does the OBDII code P128F mean for a 2016 Chevrolet Silverado?
P128F indicates an issue with the fuel rail pressure sensors 1 and 2, specifically that their signal message counters are not aligning as expected.
What are the common symptoms of code P128F in a 2016 Chevrolet Silverado?
Symptoms may include a check engine light, reduced engine performance, rough idling, hesitation during acceleration, or poor fuel economy.
What causes the P128F code to appear on a 2016 Chevrolet Silverado?
Common causes include a faulty fuel rail pressure sensor, wiring issues such as damaged or corroded connectors, or a problem with the engine control module (ECM).
How do I diagnose the P128F code on my 2016 Chevrolet Silverado?
Start by checking the wiring and connectors for the fuel rail pressure sensors, then test the sensors themselves. If no issues are found, the ECM may need further inspection.
Can I drive my 2016 Chevrolet Silverado with the P128F code?
Driving with this code is not recommended, as it may lead to reduced engine performance or potential damage to other components.
How do I fix the P128F code on a 2016 Chevrolet Silverado?
Repairs may involve replacing a faulty fuel rail pressure sensor, repairing damaged wiring or connectors, or reprogramming or replacing the ECM if necessary.
How much does it cost to repair the P128F code on a 2016 Chevrolet Silverado?
Repair costs vary but can range from $150 to $400 for replacing a fuel pressure sensor, with additional costs if ECM repairs or reprogramming are needed.
Can a low fuel level cause code P128F on a 2016 Chevrolet Silverado?
While unlikely, a consistently low fuel level can cause irregular fuel pressure, which might contribute to sensor errors. However, the primary cause is typically sensor or wiring issues.
Is it necessary to replace both fuel rail pressure sensors for code P128F?
Not necessarily. Only the faulty sensor needs replacement, but both should be inspected to ensure proper function.
Will clearing the code P128F fix the issue on my 2016 Chevrolet Silverado?
Clearing the code may turn off the check engine light temporarily, but the underlying issue must be repaired to prevent the code from returning.
Discuss the causes and fixes for P128F 2016 Chevrolet Silverado OBDII Code
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