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Each kit will have its own sensor installation guide so refere refer to the manufacturers manual for installation specifics. Once the sensor and controller / gauge ave have been installed the 0-5V signal (from the Zeitronix control unit in our testing) needs to be wired into the factory loom this can be done using pin 3 of the rear O2 sensor plug (T6 - 3). You could also go to the ECU connector B135 pin 4.
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The sensor / controller power will need to come from an ignition sourced 12 V you may be able to use the main relay 12V from Pin 2 of the rear O2 sensor plug if required. Once this is done you will need to disable the Rear O2 sensor correction as well as any DTC's related to the sensor.
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Set up the FlexFuel Ethanol Content sensor in the Sensor scaling tree with the correct input (see link for more details)
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Then simply enable Flex Fuel
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