AEM UEGO install = Feedback Noise!
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AEM UEGO install = Feedback Noise!
I recently installed an AEM UEGO gauge in my evo 8, and used the cig lighter for power and ground. This resulted in a really horrible buzz/feedback sound as soon as the radio is powered on. I then changed the power and ground to the radio harness where all my other gauges are powered and the same result. I then tried using all different ground in the dash and that didn't help at all.
To bypass the entire radio/cig area I ran wires directly to the positve and negative bat terminals and the noise was reduced but still present when then radio was on. I installed a ground loop isolater in my rca's for my system and that seemed to help but when i completely disconnect the rca's from the amps the noise goes away completely. Maybe bad rca's?? (they are older expensive stinger ones)
I'm now stumped and don't know what to do haha. Where did all you guys/gals hook up your power and ground for your UEGO Gauge. Thanks!
To bypass the entire radio/cig area I ran wires directly to the positve and negative bat terminals and the noise was reduced but still present when then radio was on. I installed a ground loop isolater in my rca's for my system and that seemed to help but when i completely disconnect the rca's from the amps the noise goes away completely. Maybe bad rca's?? (they are older expensive stinger ones)
I'm now stumped and don't know what to do haha. Where did all you guys/gals hook up your power and ground for your UEGO Gauge. Thanks!
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#10
I didnt find the problem, but avoided it. The previous owner had a bunch of audio/double din done to the vehicle. I bypassed everything and went straight to the battery + and - and it appears to work fine. Just cannot keep it plugged in or it will drain my battery. Will work for tuning purposes.
#11
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I had the same problem in my X for a while but never had a problem in my IX. Maybe because the IX had an aftermarket stereo that was already choked. I added a small choke to the dash deck and a larger one to the two power wires for the amp and toned the noise down, but I wanted to get the noise settled for accuracy and reduction of interference.
A ground loop would only provide feedback when the car was running. I could definitely reproduce and hear the heater when the car was in the on position but not running, and could definitely eliminate it by unplugging the wideband. I tried isolating the power only and ground only but neither worked. The only thing that worked was going straight to the battery with 14ga wire and triggering from a relay using the connection that was previously powering the unit. The sound is finally gone!
In the process of solving this I found out that you can, unfortunately, ground through the serial ground on the OP2.0. Oops! Luckly it only cleared the SD card and didnt destroy the OP2.
FYI -if you leave the sensor in the exhaust and it is not plugged in you will ruin it.
A ground loop would only provide feedback when the car was running. I could definitely reproduce and hear the heater when the car was in the on position but not running, and could definitely eliminate it by unplugging the wideband. I tried isolating the power only and ground only but neither worked. The only thing that worked was going straight to the battery with 14ga wire and triggering from a relay using the connection that was previously powering the unit. The sound is finally gone!
In the process of solving this I found out that you can, unfortunately, ground through the serial ground on the OP2.0. Oops! Luckly it only cleared the SD card and didnt destroy the OP2.
FYI -if you leave the sensor in the exhaust and it is not plugged in you will ruin it.
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I have all 3 of my gauges vampired into the power for the stock gauge setup and grounded to one of the gold screws behind the stock radio location. Have an aftermarket jvc deck, no feedback noise issues here
If your power cable for the amp is ran on the same side of your car as the rca's thats your problem!
If your power cable for the amp is ran on the same side of your car as the rca's thats your problem!
#14
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