hybridmoments

i picked up a remote start/alarm for one of my cars this past week.

i was planning on doing a hidden fuel pump switch, i was wondering if it was advisable to tap the fuel pump circuit into the Ignition Kill Circuit.
i wouldn't be able use the remote start feature to cut power to the fuel pump via a seperate switch cause i'd have to leave it ON if i wanted to remote start the vehicle.

can i just run the fuel pump power wire thru the relay that enables the igntion kill? or maybe the power out of the main relay into the ignition kill relay? basically having Ignition Kill and Fuel pump Kill running off the Alarm.
Is it safer to provide power to another relay (used for fuel cut) from the Ignition kill relay output terminal


Modified by hybridmoments at 5:20 PM 1/24/2007

perseverance

as long as u do it the same way u do ur starter/ignition kill then ur ok. just wire it normally closed. i foresee no problems. i've done it a few times. it's probably the best method. but if they disconnect ur alarm module then the car will still turn on. so think about that.

hybridmoments

so the relay is open when the alarm is armed?

then when you disarm the alarm it closes the relay?


i thought they functioned , that when the alarm is disarmed it allows power to the normally open relay and thus you can start it?
and when the alarm is armed it disconnects the power goign to the relay?

bpr0422

okay.. i'm confused..


but this is what i got from it...

you want remote start, but you want 2 kill switches...

one is the fuel pump, and one is the starter/ignition...

the alarm brain automatically disables the "built in" kill switch...when you want to remote start...

The way I see it, is you have to add 2 relays to your system..

the 2 relays could be wired N/O, to aid in stopping the car from starting...

to wire the 2 relays N/O you could use the "built in" kill relay to provide a ground or power for the two relays.

Clarify how relays work: http://www.the12volt.com/relays/relays.asp

hybridmoments

i think i'll just wire in a seperate swtich for the fuel pump

i forgot that the starter kill is normally closed. so if the alarm is removed the starter would have continuity


Modified by hybridmoments at 4:27 PM 1/24/2007