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Old 02-26-2011, 05:41 PM   #24 (permalink)
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Odie2 - '04 Subaru Impreza WRX Wagon
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There is a calibration resistor in those two spots that don't have wires on the O2 side. the ECU reads the resistance of it and then knows how to offset the voltage reading it receives and then uses the correct Duty Cycle for the Injectors.

All is well, you've received the right LAF.

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