View Full Version : Fuel pump relay
07-29-2005, 05:45 PM
What fuses in the fusebox are constant power on during cranking? My multimeter took a dump and i cant find which ones are constant on.
Can ms fire the injectors through the resistor pack?
Can I rip out the kjet harness out of the passenger side? Do the headlight wires run through the harness?
Which wires on the fuel pump relay power the pump?
07-29-2005, 09:04 PM
i think the fuel pump fuse is #4...its whichever one has red/yellow marked on it.
my relay works as follows: 12v switched to key / ground to MS; when the ms "turns on the ground" the circuit is made which flips on the other circuit which is 12v constant battery and hot wire to fuel pump fuse(fuse then splits into 2 wires, one for inline, one for intank on my car). Fuel pump relay for me was radio shack 30amp "automotive relay" which came with a diagram on the back of the package for extra fun and help.
i think the headlight wiring is in a different harness, just make sure when you'r unplugging/cutting stuff that it's for suuuuure going to be nonexistant after the install or you end up going to the junkyard to figure out where all the cut wires go for the headlights(like me ugh).
resistor pack only increases the "resistance" :O, ms provides the ground for the injectors, the hot for the injectors comes from the fuse panel(or wherever your 12v switched is) then to the resistor pack which then distributes to the 4 resistors then to 4 wires that go to each injector. ionno if that answers your question entirely, but mine work with the resistors (low impedence injectors though)
07-29-2005, 10:18 PM
That actually helps out a whole lot =)
Im not as retarded as i sound i promise, its just when you tear apart your car and stare at this big mess of wires and a silver box you start wondering wtf you were thinkin :-P
I was wondering if I could go MS>resistor pack>browntops. It would be easier than ms>soldered four wires
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