Lengthening the wire may be necessary but I would advise connecting it
to the Ignition coil 12Vfeed.
As you may realise, the coil gets 12V when the key is in the ON or START
position so that is what you need.
If you haven't got one yet, buy a little Digital Voltmeter. They are
pretty cheap nowadays and very helpful.
Regards,
Graeme S.
nissanman.shutterfly.com
On 26/07/2013 9:11 AM, Tim wrote:
> I need to hook up an O2 sensor to a switched power source on my
> Roadster. Since electrickery is a scary monster I am seeking advice
> please.
>
> The red wire is not very long and is most likely meant to be run to the
> main ignition switch. Regardless of where I run it, it is not long
> enough to reach to where I want to (temporarily) put the gauge (I will
> not be using the gauge full time once my Webers are dialed it). Since I
> will most likely need to lengthen the red wire, what are my options for
> a switched power source under the hood? Is there a b bestb place to hook
> up the red wire for the gauge?
> Thoughts please folks.
>
> Thanks!
> tim
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