82FanTC

iTrader: (9)

I am looking for the easiest way to hook power up to only turn on with the ignition on. I recently hooked up a wideband controller and ran the power from a second gen fuse box I swapped in where the fuseable links used to be. I was under the impression this was switched but to no avail it is not.

How can I hook it up so it only comes on with the ignition on without completely re-running wires? Or if I have to re-run wires where do I hook it into? I am completely ignorant when it comes to finding ignition on only power.

Thanks

Sgt Fox

iTrader: (3)

You could use the power to the cig lighter to toggle a relay for your switched power, thus keeping your existing fused wire and not placing load on any existing circuit.

82FanTC

iTrader: (9)

anywhere to get it from under the hood? How about from the wiring harness? When I took out the rats nest I clipped all the unused wires but left just enough at the harness to be able to splice a wire back on.

t_g_farrell

iTrader: (1)

Get it off the positive of the ignition coil. Thats always a switched 12v source. I use it to trigger my relays for the electric fans.

rxtasy3

iTrader: (2)

since i don't even use mine and it probably don't work anyway, and i could be wrong concerning these cars but all cig lighters have +12v all the time. and i agree with tim, just get it from the + side of one of the coils.

82FanTC

iTrader: (9)

Perfect. I love it when there is such an easy answer!

Thanks guys.

74RX4

iTrader: (10)

Sarg is correct, of course. The lighter is switched. As already mentioned, the Black/white stripe wire connected to the positive terminal on each coil is the easiest connection point under the hood.

Sgt Fox

iTrader: (3)

Thanks 74RX4. Most Japanese cars have the lighter socket as switched 12VDC whereas US made cars use constant 12VDC.