Thread: Where do y'all source 12v for your wideband???

Or the issue could be with your injector battery offset, as you put more load on the alt the voltage can drop an u will use a different cell in your injector battery offset table..

This has cured issues for me or my friends a few times..

I'll try a new ground and if that doesn't help, Lynch, I'll ask you explain. I'm not quite sure what you mean.

I use the cig lighter 12v and a chassis ground with no issues.

BATTERY:
What battery are you using?
What is the CCA on the battery that you are using?
How old is the battery?
Have you performed a load test on the battery?

ALTERNATOR:
Are you using a B13/B14 or B15 alternator?
Have you performed a load test on the alternator?

Do your headlights dim when you turn the blower motor on?

Have you connected a volt meter to see if system voltage drops when you turn the blower motor or headlight on or when the radiator fans come on?

Fwiw I run a dedicated fused and switched line for the wideband. For ground its going to a ring terminal on a bolt connected to the bare metal under the center column.

fuse box

Totally ran outta time during the weekend, never even got to change oil in my truck (400 over is not like me!).
Thanks for all the suggestions, keep em coming :-) I always update and won't leave y'all hanging 👍
I'm going to first try grounding right to 1 of the 4 studs/nuts on the shifter column, then see what happens and o from there.

Those who wired to the fuse box where did you wire to? Did you remove and go from behind or plug an extension from under a fuse?

I 'tap' the fuse and solder a lead to it....
tap = grind small corner off to solder to it.

then I put an inline fuse on the lead.... unless the circuit isnt used, and then I just orient the fuse so the side going to the load is protected by the fuse itself.

I had the same issue and ran a dedicated circuit, which I ended up doing one by one as I added more and more gauges, boost controller, etc. I am now going to run a thicker, probably 8AWG dedicated line to one of these to clean it all up.
http://www.amazon.com/Blue-Sea-Systems-Blade-Block/dp/B001P6FTHC/ref=sr_1_2?ie=UTF8&qid=1395700495&sr=8-2&keywords=fuse+block

Ill have it run from the key switch to a relay
Amazon.com: 80 AMP RELAY 12 VOLTS: Automotive

I am still unsure of what size relay and max power I will actually need since I do not yet have everything and cannot calculate the total amperage.

If you plan on adding more in the future or think you might, I would look into this route.

Got out there today and reground to the chassis, also made this video showcasing a voltmeter. You'll see at the end of the video just exactly where I re-ground, under the plate for the shifter. The fans even came on just as I was at the voltmeter...any more ideas? I'll take that explanation now @lynchfourtwenty buddy, please :-)