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

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.

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