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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > 12V Key-On Power Source in Engine Bay



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      06-01-2009, 06:46 AM   #1
Former_Boosted_IS
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12V Key-On Power Source in Engine Bay

Anyone have a reliable 12V key-on power source under the hood that won't cause any codes or dash illuminated lights? Thanks in advance.
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      06-01-2009, 07:14 AM   #2
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If its for meth i just simply drilled the positive battery post...wired that to my boost switch, this way the switch is always on but only sprays at 10plus. If its not for meth...ignore me.
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      06-01-2009, 07:17 AM   #3
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Originally Posted by WhiteSled View Post
If its for meth i just simply drilled the positive battery post...wired that to my boost switch, this way the switch is always on but only sprays at 10plus. If its not for meth...ignore me.
It is for the failsafe under the hood. It needs a 12V key on source versus a constant power.
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      06-01-2009, 07:35 AM   #4
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You could use the orange wire in the green plug in the ECU box that the PROcede uses...
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      06-01-2009, 07:36 AM   #5
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You could use the orange wire in the green plug in the ECU box that the PROcede uses...
There is no tap outside of the ecu box? That would stink it I have to tap the ecu.
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      06-02-2009, 04:39 AM   #6
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No help? How about the trunk?
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