MK6ix - Fuel Pump Upgrade Harness (MK5,MK6 TFSI/TSI)

The fuel pump control module in the factory harness is designed to power only the original low-pressure fuel pump that came with the vehicle. Aftermarket high-capacity in-tank fuel pumps tend to consume more current than the factory control module was intended to provide. To address this issue, this is a Plug and Play harness that includes a secondary ground, which must be connected to the factory ground bolt location in the C pillar. This additional grounding will prevent overheating when using the OEM fuel pump wiring with larger high-pressure fuel pumps.