I changed my A-pillar 3 pod to a 4 pod and put in the ev2 fuel pressure gauge. Wired it per instructions (or at least the way I understood it to be) however it doesn't work!! I have power to #1 (albeit 5volts), #2 dimmer varies voltage as it should, #3 shows good ground continuity, #4,5 and 6 which come directly from the sender are dead. Now, I just ran the supplied wire harness from sender to the orange 6 cavity connector: #4 is +5v, #5 is sensor and #6 is ground. I am assuming that #4 gets bridged power from #1 and #6 is bridged grounded with #3. Am I wrong? Do I need to run a second hot to #4 and a second ground to #6?? All the other gauges work fine, but they are the EV type with amp boxes. I have tried contacting DM using the after hours number to no avail. It is Sunday and would like to get this working before I have to go back to work myself tomorrow. Any help would be appreciated.
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Here's the instructions.
http://www.isspro.com/installation/IS169.pdf

The instructions tell you to hook #1 to the ignition, which would be 12v, not 5v.

 

but would that keep the gauge from working entirely?? I have the instructions already but I am unclear if I need to run two hots and two grounds.

 

Is the 5v terminal confusing you?

One hot wire, 12v goes to terminal 1/red
One ground wire goes to terminal 3/black

The other 3 wires, 4, 5, 6, go to the sensor.

Terminal 2 is just the night illumination wire, and is not needed to make the gauge work.

 

Had it wired correctly, but as you mentioned...I needed 12v at pin#1. I guess 5v at that pin was not enough to drive the gauge, so yes I was thinking that 5v should have been adequate. Found a 12v source for pin #1 and bingo!! Thanks for your help.