scottly 475 Posted February 15, 2020 Hey guys, I have a question for the 12v electrical guys. I need a switched ignition for accessories in my engine bay (xd falcon ute originally 6 cyl) My question is, Is it possible to run to run a switched ignition source off the + coil as I need a constant 12v power whilst cranking? Or is this a bad idea? Or is there another place easy enough to tap into? thanks scott Share this post Link to post Share on other sites
scottly 475 Posted February 16, 2020 Thought I’d just give this a little bump, any ideas fellas? I think I can just call the ignition mob ask them to. Share this post Link to post Share on other sites
gerg 10,871 Posted February 16, 2020 I don't see any problem teeing off the coil + if the load is negligible. If there is more than a couple of amps load, you need to put a relay in. A relay only draws about 20mA so makes bugger-all difference.Sent from my CPH1903 using Tapatalk 1 scottly reacted to this Share this post Link to post Share on other sites
scottly 475 Posted February 19, 2020 Ok so I spoke to the ignition company and the suggest don’t do it for multiple reasons I can’t remember what they were. He suggested to find a clean source for the 12v switched ignition. Thanks Share this post Link to post Share on other sites
CHESTNUTXE 7,299 Posted February 19, 2020 i had this problem when setting up my msd,needed 12v switched power 1 scottly reacted to this Share this post Link to post Share on other sites
gerg 10,871 Posted February 19, 2020 i had this problem when setting up my msd,needed 12v switched powerIn that case, you would just use your old coil + supply as the MSD has its own coil +/- leads completely independent of the existing wiring. The ignition + into the MSD is only a trigger to turn it on, it gets its actual power from the fused battery supply.Sent from my CPH1903 using Tapatalk 2 CHESTNUTXE and scottly reacted to this Share this post Link to post Share on other sites
