Where would a person install a fuel pressure switch for gauge on a 2004? I am helping a buddy out.

 

Is there a port near the lift pump?

 

You want the sender (senders are for gauges, switches are for lights) between the last filter and the CP3.

A simple tapped banjo would be the easiest.

http://www.glacierdieselpower.com/pr...x?pf_id=3414TB

 

What should the pressure reading be? My manual only shows up to 2001. Thanks

 

Which LP does he have?

Canister mounted: I am not sure what it will read at idle/WOT.. but should try to stay above 2.

In-Tank: Idle 8-9, cruise 7-8, WOT 5-6 depending on mods. 2 is as low as he should let it go.

Bosch specs are -5 to +15, but on a 0-30 psi gauge you start to lose accuracy around 1-2 psi, which is why I say 2 should be the bottom end, its all you can really accurately tell for low pressure.