P228C 2016 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 2016 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 2016 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 2016 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 2016 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 2016 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 2016 GMC Sierra code?
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Frequently Asked Questions about P228C 2016 GMC Sierra Code
1. What are the common symptoms of OBDII code P228C in a 2016 GMC Sierra?
- Common symptoms include poor engine performance, rough idling, decreased fuel efficiency, and potential stalling.
2. What does the OBDII code P228C indicate in a 2016 GMC Sierra?
- OBDII code P228C indicates a Fuel Pressure Regulator Control Performance Low Pressure issue in the vehicle's fuel system.
3. What are the possible causes of OBDII code P228C in a 2016 GMC Sierra?
- Possible causes include a faulty fuel pressure regulator, clogged fuel filter, fuel pump issues, vacuum leaks, or problems with the fuel pressure sensor.
4. How can I diagnose the OBDII code P228C in my 2016 GMC Sierra?
- Diagnosing the code typically involves checking the fuel pressure using a gauge, inspecting the fuel pressure regulator, and scanning for other related trouble codes.
5. Can I continue driving my 2016 GMC Sierra with OBDII code P228C?
- It is not recommended to drive the vehicle with this code as it can lead to further damage to the engine or fuel system components.
6. How can I repair OBDII code P228C in my 2016 GMC Sierra?
- Repair options may include replacing the fuel pressure regulator, cleaning or replacing the fuel filter, addressing any vacuum leaks, or repairing/replacing the fuel pump.
7. Is it possible to reset the OBDII code P228C in a 2016 GMC Sierra without fixing the underlying issue?
- While clearing the code may temporarily remove the warning light, it will likely reappear if the root cause of the problem is not addressed.
8. Are there any DIY tips for fixing OBDII code P228C in a 2016 GMC Sierra?
- DIY tips may include checking for visible fuel leaks, ensuring proper fuel pressure, and inspecting the fuel pressure regulator for any signs of damage or wear.
9. How much should I expect to pay for professional repairs related to OBDII code P228C in a 2016 GMC Sierra?
- Repair costs can vary depending on the exact cause of the issue, but expect to pay anywhere from $200 to $600 for parts and labor.
10. Can a mechanic help me determine if OBDII code P228C in my 2016 GMC Sierra is a recurring problem?
- A mechanic can perform a thorough diagnosis to determine if the issue is a one-time occurrence or a recurring problem that needs to be addressed.
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