P128D 2016 Chevrolet Silverado Code - Fuel Rail Temperature Sensor 2 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 2, Fuel Rail Temperature Sensor 2 harness is open or shorted, Fuel Rail Temperature Sensor 2 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
- P128D 2016 Chevrolet Silverado indicates Fuel Rail Temperature Sensor 2 Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty Fuel Rail Temperature Sensor 2, Fuel Rail Temperature Sensor 2 harness is open or shorted, Fuel Rail Temperature Sensor 2 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 P128D 2016 Chevrolet Silverado Description
What are the Possible Causes of the DTC P128D 2016 Chevrolet Silverado?
- Faulty Fuel Rail Temperature Sensor 2
- Fuel Rail Temperature Sensor 2 harness is open or shorted
- Fuel Rail Temperature Sensor 2 circuit poor electrical connection
How to Fix the DTC P128D 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 P128D 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 P128D 2016 Chevrolet Silverado Code
1. What does OBDII code P128D mean on a 2016 Chevrolet Silverado?
Code P128D indicates an issue with the Fuel Rail Temperature Sensor 2 where the signal message counter is incorrect or inconsistent.
2. What are common symptoms of code P128D?
Symptoms may include engine performance issues, rough idling, poor fuel efficiency, or the check engine light turning on.
3. What causes code P128D to appear?
Common causes include a faulty fuel rail temperature sensor, damaged wiring or connectors, or a malfunction in the engine control module (ECM).
4. Can I drive with a P128D code on my Silverado?
While the vehicle may still be drivable, it’s not recommended as it can lead to reduced performance and potentially cause further damage.
5. How do I diagnose a P128D code?
Use an OBDII scanner to confirm the code, then inspect the fuel rail temperature sensor, wiring, and connectors for damage or corrosion.
6. How do I fix a P128D code on a 2016 Silverado?
Repairs may include replacing the fuel rail temperature sensor, repairing damaged wiring, or reprogramming the ECM if necessary.
7. How much does it cost to fix a P128D code?
Costs can vary but typically include $50-$150 for a new sensor plus labor, with additional charges if wiring or ECM issues are involved.
8. Can a bad fuel rail temperature sensor cause engine damage?
While not directly causing damage, it can lead to improper fuel injection and performance issues that may harm the engine over time.
9. How can I prevent code P128D from recurring?
Regular maintenance, checking for wiring damage, and addressing any sensor issues promptly can help prevent the code from reappearing.
10. Does the P128D code require ECM replacement?
ECM replacement is rare but may be needed if reprogramming or sensor replacement doesn’t resolve the issue.
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