im in the middle of installing an inline fuel pump in my 91 civic dx, and I have a question. Im supposed to hook this relay up along with it and Im wondering where I should hook up one of the wires. Here are the relay wiring instructions from the honda-tech knowledge base:
Pin 86- Pin # 4 wire on Main relay
Pin 85- chassis ground inside the car
Pin 87- Positive terminal on inline fuel pump
Pin 30- Positive on your cars battery
pin 86,85,87, and 30 are all the pins off the relay. Now my question is about pin 86. The knowlodge base says to connect it to pin #4 on my main relay harness, it should be a yellow with green stripe they say. I couldnt find that wire on my main relay so Im thinking I should just hook it up to the ACC wire under my dash but where is that?

 

thats a 12v trigger wire, you can hook it into the fuse box w/ some "quick connect" terminals.

 

which wire do i tap in to though? i look at my fuse box and there is a million wires down there

 

Is the ACC a constant current power source? Im not sure if i hooked my stereo up to that one. If it is, that's why I left it like that, because I have power even if i take the key out.
If someone could confirm that, Ill be happy to tell you what the wire looks like.

 

1 of these two plugs is 12v constant, 1 is 12v key on only.

 

ok thanks

 

i tapped mine into the stock fuel pump power wire, its yellow and white, it works fine and though some people say it steals current from the stock fuel pump, my voltmeter tells me otherwise.