Thread: DEEP ECU wiring
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Old Jun 23, 2016 | 09:24 PM
  #20  
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big_wasa
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From: Linc's
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The ecu switches the earth so yes switched 12v to the injectors, coil ect and the ecu fires them by earthing them.

The O2 also wants a switched live. This is for the heater and not the sensor.
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