P228C 2014 GMC Sierra Code - Fuel Pressure Regulator Control Performance Low Pressure
Quick Answer
The fuel rail pressure sensor detects fuel pressure within the fuel rail. Common causes include Faulty Fuel Rail Pressure Sensor, High Pressure Fuel Pump harness is open or shorted, High Pressure Fuel Pump electrical circuit poor 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
- P228C 2014 GMC Sierra indicates Fuel Pressure Regulator Control Performance Low Pressure.
- Common causes
- Common causes include Faulty Fuel Rail Pressure Sensor, High Pressure Fuel Pump harness is open or shorted, High Pressure Fuel Pump electrical circuit poor 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 P228C 2014 GMC Sierra Description
High pressure fuel is regulated by the high-pressure fuel pump actuator, which is a part of the high-pressure fuel pump. The high-pressure fuel pump actuator is a solenoid valve. The ECM provides a voltage on the actuator high control circuit and ground on the actuator low control circuit. Both circuits are controlled through output drivers within the ECM. When deactivated, both drivers are disabled. When activated, the high control circuit driver energizes the high-pressure fuel pump actuator, and the low control circuit driver Pulse-Width Modulates (PWM) the low control circuit to ground.
The high-pressure mechanical fuel pump is driven by three lobes on the camshaft. The ECM uses the camshaft and crankshaft position sensor inputs to synchronize the high-pressure fuel pump actuator with the position of each of the camshaft lobes. The ECM regulates fuel pressure by adjusting the portion of each pump stroke that provides fuel to the rail.
The ECM monitors the fuel rail fuel pressure sensor and the high-pressure fuel pump actuator to determine if the commanded and actual pressure are within a predetermined range, or if the amount of fuel pressure correction exceeds a calibrated pressure.
The Diagnostic Trouble Code (DTC) will set if the actual fuel rail pressure is 3 MPa (435 psi) less than the desired fuel pressure. The condition exists for greater than 5 s.
What are the Possible Causes of the DTC P228C 2014 GMC Sierra?
- Faulty Fuel Rail Pressure Sensor
- High Pressure Fuel Pump harness is open or shorted
- High Pressure Fuel Pump electrical circuit poor connection
- Faulty High Pressure Fuel Pump
How to Fix the DTC P228C 2014 GMC Sierra?
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 P228C 2014 GMC Sierra 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 P228C 2014 GMC Sierra code?
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Frequently Asked Questions about P228C 2014 GMC Sierra Code
1. What are the common symptoms of OBDII code P228C on a 2014 GMC Sierra?
- Common symptoms include rough idling, decreased fuel efficiency, engine stalling, and possibly a Check Engine light.
2. What can cause OBDII code P228C on a 2014 GMC Sierra?
- This code is often triggered by issues with the fuel pressure regulator, such as a malfunctioning regulator or low fuel pressure in the system.
3. How serious is OBDII code P228C on a 2014 GMC Sierra?
- While the vehicle may still be drivable with this code, it can lead to poor engine performance and fuel economy. It is best to address the issue promptly.
4. Can a dirty fuel filter trigger OBDII code P228C on a 2014 GMC Sierra?
- Yes, a clogged or dirty fuel filter can restrict fuel flow and result in low fuel pressure, which may trigger this code.
5. Is it safe to continue driving with OBDII code P228C on a 2014 GMC Sierra?
- It is not recommended to drive for an extended period with this code as it can lead to further damage to the engine and components.
6. How can I diagnose OBDII code P228C on a 2014 GMC Sierra?
- Diagnosing this code typically involves checking the fuel pressure, inspecting the fuel pressure regulator, and testing for any leaks in the fuel system.
7. Can a faulty fuel pump cause OBDII code P228C on a 2014 GMC Sierra?
- Yes, a failing fuel pump can result in low fuel pressure, triggering this code. It is important to inspect the fuel pump as part of the diagnostic process.
8. How can I repair OBDII code P228C on a 2014 GMC Sierra?
- Repair options may include replacing the fuel pressure regulator, cleaning or replacing the fuel filter, checking for and repairing any fuel leaks, or addressing issues with the fuel pump.
9. Are there any DIY fixes for OBDII code P228C on a 2014 GMC Sierra?
- While some simple tasks like checking for loose connections or replacing the fuel filter can be DIY-friendly, it's recommended to consult a professional for accurate diagnosis and repair.
10. How much does it cost to fix OBDII code P228C on a 2014 GMC Sierra?
- The cost of repairing this code can vary depending on the underlying issue, parts needed, and labor costs. It's advisable to obtain quotes from local mechanics or dealerships for an accurate estimate.
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