So I just bought an AEM wideband gauge to go with my stock boost and interceptor. When I wired the interceptor I tapped power off the pink boost gauge wire, and both worked fine. Now I added the a/f gauge and tapped power and ground off the same boost harness. When I turn the key on the interceptor works, the a/f shows 111 (not hooked to sensor yet and car isn't running) and the boost gauge doesn't work. Clearly the other 2 are getting power, so i unplugged the a/f and interceptor to see if they were causing any issue, and he boost still doesn't power on.

Also I noticed a weird noise coming from the boost gauge when power is on.

Any help would be great!

 

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is what you should have used u might be messing up the voltage.. there is plenty of fuses in the box next to your radio
disconnect both gauges and see if your boost gauge works

 

I did disconnect the other ones and just try boost gauge, still nothing. I'm leaning toward it might be busted.

 

its possible. luckily boost gauges are cheap. id say wire your aem into and wire your aeroforce into the fuse panel ive had my aem hooked up to my boost gauge with no problems but soon as you add another gauge it might have jacked it up. when u added this gauge you did have your battery disconnected right?

 

I wired the whole thing off my car unplugged. My buddy is bringing over a test light and voltmeter tonight.

 

Got it fixed! Bad ground connection, even after I re-did the connection it still didn't work right, 3rd time was the charm

 

2 be honest I would really wire ur other 2 gauges off a seperate power source. That's a lot to be drawing off the boost gauge harness u don't wanna fry it. Take a male connector and grind it down it will plug right into 1 of the extra terminals in the fuse box. That's what I did.

 

I think I'm going to get one of those add a fuse things, right now I'm just glad they all are working lol