Fuel lift pump harness – Duramax

Complete control harness uses digital circuitry to cover all power supply issues and incorporates a non load carrying oil psi safety switch to ensure that pump does not run when engine is not running.It also includes a “one shot” primer function that energizes the pump for several seconds at key up to prime the fuel system at startup like most modern EFI vehicles do. There is also a manual push button to override the control circuit when bleeding filters!