P128F 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 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 Description
What are the Possible Causes of the DTC P128F?
- 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?
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 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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Get the P128F code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P128F Buick — Fuel Rail Pressure Sensors 1 and 2 Signals Message Counter Incorrect
- P128F Cadillac — Fuel Rail Pressure Sensors 1 and 2 Signals Message Counter Incorrect
- P128F Chevrolet — Fuel Rail Pressure Sensors 1 and 2 Signals Message Counter Incorrect
- P128F GMC — Fuel Rail Pressure Sensors 1 and 2 Signals Message Counter Incorrect
Frequently Asked Questions about P128F Code
1. What are the common symptoms of OBDII code P128F?
- Common symptoms include rough idling, decreased fuel efficiency, hesitation during acceleration, and potential stalling of the vehicle.
2. What can cause the OBDII code P128F to trigger?
- The code P128F typically triggers due to faulty fuel rail pressure sensors, wiring issues, or problems with the engine control module (ECM).
3. How can I diagnose the cause of OBDII code P128F?
- Diagnosis involves checking the fuel rail pressure sensors and associated wiring for any damage or malfunction. It may also require using a scan tool to monitor sensor readings.
4. Can driving with OBDII code P128F cause further damage to the vehicle?
- Continuing to drive with code P128F may lead to poor engine performance and potential damage to other engine components over time. It's recommended to address the issue promptly.
5. What are some repair tips for fixing OBDII code P128F?
- Repair tips include inspecting and replacing faulty fuel rail pressure sensors, repairing damaged wiring, and ensuring proper connections. Additionally, resetting the trouble code after repairs is essential.
6. Is it safe to continue driving with the OBDII code P128F pending?
- While it may be safe to drive with the code pending in the short term, it's advisable to address the issue promptly to prevent any further complications or potential breakdowns.
7. Can a DIY enthusiast fix OBDII code P128F at home?
- Depending on the individual's mechanical skills and access to tools, DIY enthusiasts may be able to diagnose and repair code P128F at home. However, professional assistance is recommended for accurate diagnosis and proper repairs.
8. How much can I expect to pay for fixing OBDII code P128F at a repair shop?
- The cost of fixing code P128F at a repair shop can vary based on the extent of the issue, labor rates, and parts needed. It's advisable to obtain quotes from multiple shops for comparison.
9. Will resetting the OBDII code P128F make it go away permanently?
- Simply resetting the code without addressing the underlying issue will not make it disappear permanently. The root cause of code P128F needs to be identified and fixed to prevent it from reoccurring.
10. Is OBDII code P128F a common issue in specific vehicle makes or models?
- OBDII code P128F related to Fuel Rail Pressure Sensors 1 and 2 Signals Message Counter Incorrect can occur in various vehicle makes and models, particularly those equipped with fuel rail pressure sensors.
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