Fleece Return Fuel Pressure Test Port (FPE-FPTP-GM-1116) for 2011-2016 Duramax LML

The Fleece Return Fuel Pressure Test Port (FPE-FPTP-GM-1116) is a precision-engineered diagnostic tool designed specifically for 2011-2016 GM Duramax LML diesel engines. This test port allows for accurate monitoring of the return fuel pressure, a critical parameter in diagnosing fuel system issues such as injector leakage or restrictions in the return line. Manufactured by Fleece Performance Engineering, the component features high-quality materials and a design that integrates seamlessly into the factory fuel system, ensuring a secure and leak-free connection. Ideal for both professional technicians and advanced DIY enthusiasts, the FPE Return Fuel Pressure Test Port provides a reliable and convenient solution for maintaining optimal performance and efficiency in Duramax LML engines.