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Old 09-22-2012, 07:56 PM   #1
garudatwo
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Member#: 322385
Join Date: Jun 2012
Chapter/Region: Tri-State
Default AEM Wideband gauge, high pitch whine from speakers: fixed

Gents,

If any of you guys have a problem with the AEM Wideband making a high pitched sound from the speakers, make sure that it has it's own 12v 10a fused power (not tapping the stereo harness) and that it has it's own chassis ground. Mine was sucking power from the factory headunit harness and the ground was spliced into the ground which connects to the HU's body, and it would make a high pitched whine as well as tell me that my AFR is 100% lean or 100% rich at times. Now neither is a problem after the fix.

Just a friendly PSA
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Old 09-23-2012, 05:29 PM   #2
mechatricity
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Join Date: Aug 2011
Chapter/Region: TXIC
Location: Dallas, TX
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2006 WRX Wagon
2004 WRX Wagon

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Too bad you couldn't tune the pitch of the whine on a gradient with AFR
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Old 09-23-2012, 05:32 PM   #3
garudatwo
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Wire it such that when it goes to 16 the whine goes away and starts screaming the f-word?
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Old 09-25-2012, 11:29 PM   #4
Uncle Scotty
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we have an Uncle

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w0w......i knew **** like that 35 years ago
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Old 09-26-2012, 12:44 AM   #5
garudatwo
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Congrats! You win at internets
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Old 11-18-2013, 04:08 PM   #6
paulowrx
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god dam i have the same problem how did you run the wires to fix that annoying noise?
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Old 11-18-2013, 05:28 PM   #7
802-303
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Join Date: May 2011
Chapter/Region: RMIC
Location: Colorado
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Ground loop,
How do you work?
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