PDA

View Full Version : wire which becomes live with engine switch on??


fastcar1cars
10-04-11, 07:51 PM
hi all trying to locate a wire in my 20xe engine bay nova which becomes live when the engine fires up and stays live! Its for the relay on my pas pump!
Cheers
Lee
10-04-11, 08:01 PM
You want to tap into the thick black wires in the loom.
MK999
10-04-11, 08:06 PM
is it to switch the pump on/off or run it? As I imagine that pulls a fair amperage, may need a dedicated wire running to it to save it frying the loom.
Lee
10-04-11, 08:07 PM
is it to switch the pump on/off or run it? As I imagine that pulls a fair amperage, may need a dedicated wire running to it to save it frying the loom.

The key word is relay lol
fastcar1cars
10-04-11, 08:18 PM
yeah jus switch a relay on main live is from the battery! I want to be able to put the radio on ie key position one and the pump not be on! If you see what i mean? Lol!
Iain
10-04-11, 08:22 PM
Do Nova ignition barrels let you turn the radio on without the rest of the "ignition live" circuits? I thought not...
MK999
10-04-11, 08:55 PM
The key word is relay lol

That was sneakily edited before you replied, I read it a while ago and I'm sure it said "its for my pas pump" lol
fastcar1cars
10-04-11, 09:33 PM
lol! Ok ill locate a black wire then! What amp fuse are we thinking? Its a fused relay! 25 amp?
Lee
10-04-11, 09:41 PM
yeah jus switch a relay on main live is from the battery! I want to be able to put the radio on ie key position one and the pump not be on! If you see what i mean? Lol!

Sure. Just find yourself a black wire and check it doesn't go live on position 1 with a DMM. The secondary circuit will also die on crank as well.
AlexW
10-04-11, 10:22 PM
Alt blue/white, Onto a relay, other side onto earth and then use that to switch the fat live for the pas.

That is how mine is, and has been like that for a good 9/10 months now.