Experiencing engine trouble and seeing a P228c code? This usually points to a fuel pressure issue, specifically “Fuel Pressure Regulator 2 Exceeded Control Limits – Pressure Too Low.” For DIY mechanics, tackling this problem at home can save significant costs compared to dealership prices. This guide shares a real-world experience of resolving a P228C code by replacing the high-pressure fuel pump and related components.
The initial symptoms included the car not starting and a “service stabilitrak” light illuminated on the dashboard. Troubleshooting began by checking the fuel lines. Remarkably, upon disconnecting both the low and high-pressure fuel lines, very little fuel was present, indicating a potential issue with fuel delivery. Suspecting the high-pressure fuel pump, a new pump and fuel lines were ordered online for under $300 – a considerable saving versus the dealer’s quote of over $450 for just the pump.
Upon receiving the new parts, it was noted that a gasket for the pump was not included and needed to be sourced separately from an auto parts store. A fuel line removal tool, costing around $9, proved essential for the job. During the pump replacement, the cam roller detached. It was cleaned with contact cleaner and lubricated with oil from the old pump before reinstalling it with the new pump. New fuel lines were then connected, and the fuel hose and pump plug were reconnected.
The result was immediate. The car started right up, and the “service stabilitrak” light disappeared. While the “service engine light” remained on (likely due to a permanent code requiring module reset), a test drive confirmed immediate acceleration and restored performance. It’s worth noting that a basic OBD scanner might not accurately read fuel pressure changes post-repair, as observed in this case with a Thinkobd 100 scanner.
This DIY repair successfully addressed the P228C code and related symptoms, highlighting that high-pressure fuel pump replacement can be a viable at-home solution for this issue, potentially saving car owners a significant amount of money. Always remember to research your specific vehicle and exercise caution when working with fuel systems.
