High Pressure Fuel Pump

It is designed to boost fuel pressure to extremely high levels, often exceeding 2,000 psi, which is essential for directly injecting fuel into the combustion chamber. This process leads to better fuel atomization, enhanced engine efficiency, and increased power output. This HPFP is typically driven by the camshaft and functions in conjunction with a low-pressure fuel pump. Over time, components can experience wear, contamination, or internal failure, leading to a range of drivability issues. Common symptoms of a failing high-pressure fuel pump include hard starting, engine hesitation, misfires, loss of power under load, check engine lights with lean/rich codes, reduced fuel economy, and unusual noises such as ticking or whining from the pump area, or visible fuel leaks. Hitachi is a Tier 1 supplier to major automotive brands, manufacturing its aftermarket parts to meet OEM specifications. These parts are produced in ISO/TS 16949 certified plants, ensuring a high standard of quality, fit, and performance. This particular High Pressure Fuel Pump is designed as a direct replacement for various Audi and Volkswagen models equipped with the EA888 Gen 3 engine platform. Specific fitment includes Audi A3 Quattro, S3, and TT models, as well as Volkswagen Golf GTI and Golf R models. Crucially, for 2015 and 2016 Audi A3 Quattro models, fitment is limited to vehicles produced up to August 31, 2015. For 2015 Volkswagen GTI models, fitment is limited to vehicles produced up to October 5, 2015.