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Old 06-07-2008, 05:17 AM   #1
Scooby Newbie
Member#: 169675
Join Date: Jan 2008
Chapter/Region: VIC
98' E36 M3
estoril blue

Default Defi owners...

I was wondering if it would be alright if I tapped both the 12v Continuous & 12v ignition to a 12v Ignition source...

This way my defi's ONLY turn on when my car is started...

The downside is that everytime I shut off the car, my PEAK boost and boost warning set will reset back to default..
The reason I did this is because I dont want the Defi's to turn on when im just listening to music with car off...

Will this affect/damage the control unit since it has NO 12v continuous and gets switched in either ON or OFF state??

btw this is for my bmw 335i...
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Old 06-07-2008, 01:58 PM   #2
Scooby Newbie
Member#: 158586
Join Date: Sep 2007
Chapter/Region: MWSOC
Location: North Dakota, USA
2009 WRX
Pearl White


If you tap a continuous circuit they won't shut off.
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Old 06-07-2008, 02:25 PM   #3
Scooby Newbie
Member#: 112126
Join Date: Apr 2006
Chapter/Region: SCIC
Location: Ca

theres a way to wire it so that it doesnt turn on when ur listenting to the radio and only when the key is in the on position
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Old 06-07-2008, 04:41 PM   #4
Scooby Specialist
Member#: 49895
Join Date: Dec 2003
Chapter/Region: NESIC
Location: Connecticut
09 Forester
06 Legacy 2.5i Wagon


^^ Exactly. Wire the continuous 12V like you are supposed to so you won't loose your settings. Then wire the 12V ignition wire to a source that is only hot with the key in the ON position. That way, when the key is in the ACC position (listening to the radio), the gauges are off.

I wired my Defis this way so I wouldn't have to listen to the oil pressure warning buzzer when just listening to the radio.
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