ZiggyVanFloggin

ok looking at this picture of the driver's side of my LS1. there are 2 ports on green on black. whcih one do i test fuel pressure on ,since they both indicate fuel? I'm looking to attach fueld pressure sender for gauge, I did a search but found nothing on the green port.

bestlude

iTrader: (4)

Cant see the picture but if you're going to check the fuel pressure, you can do it through the port that's on the drivers side fuel rail. It should be capped off with a black cap.. You can also attach a fuel pressure gauge to this port simply by removing the shrader valve inside of it..

Hope this helps

ZiggyVanFloggin

well there are two ports in that area, the black one off the fuel rail, and a green capped valve with a "warning fuel" tag attached to it, and its attached to rubber hoses

fastassls1maro

iTrader: (22)

you want the black cap fitting. The green cap is for the EVAP system test port. Like said above if you are installing a sending unit you will need to removed the shrader valve from the end of the fuel rail under the black cap. Caution- there will still be fuel pressure when removing the shrader valve from the rail, i recommend laying a rag under the rail to soak of the fuel that will come out.

ZiggyVanFloggin

cool thanks for replies, I'll post pics when Im done