AEM guage power source

[gpxsrx]

Where is the best place to connect aem AFR gauge to a power wire source. Thanks Bruce

 

[MrSled]

Right from the battery with a relay that powers up off headlight.

 

[0llll0]

I used the power from the back of the 12v socket(cigarette lighter). Used piggyback sta-kons.

 

[Curtis Chambers]

Add fuse if coming off battery

 

[gpxsrx]

I used the power from the back of the 12v socket(cigarette lighter). Used piggyback sta-kons.

Simple and clean thanks Bruce

 

[MrSled]

Simple and clean thanks Bruce

I have tried this before but some O2 Sensors don't like that power source... just an FYI, it can mess up the gauges output numbers.

 

[gpxsrx]

I have tried this before but some O2 Sensors don't like that power source... just an FYI, it can mess up the gauges output numbers.

I'm using a AEM 30-4110 gauge. Thanks Mr Sled for the heads up reading installation instructions.
Quote: Connect to a switched 10-18 volt power source utilizing a 10a fuse. I have the sled all tore apart checking everything out, reversed cooling fan rotation so I will make a harness for AEM gauge with 10 a fuse.Thanks again Bruce

 

[0llll0]

OSP makes wiring harness kits to power one or two aem gauges and they power it from the back of the 12v socket, you would think that they wouldn't do that if it causes problems but who knows maybe it could. I know mine seems to work fine.