No ethanol content analyzer is needed, as the S300 V3 converts the signal from the ethanol content sensor directly.
With the s300 V3 an ethanol content sensor may be connected directly to the s300 Analog Input 0. While only two columns are needed for compensation, 0V and 5V must be present in the table to prevent any problems if the ethanol content analyzer voltage goes outside the normal voltage range. Specifies the ECU pin used for the analog input from the ethanol content analyzer. A suitable ethanol content analyzer is the Zeitronix ECA, which also needs a ethanol content sensor. This analog voltage is then input to the ECU so that it can determine the ethanol content. Flex fuel offers the ability to compensate for different fuel ethanol content by using either an ethanol content sensor (S300 V3) or ethanol content analyzer connected to the ECU, which is useful when switching from gasoline to ethanol (and vise verse) or when the E85 ethanol content is seasonally altered.Īn ethanol content analyzer converts the output of an ethanol content sensor to an analog voltage proportional to the fuel ethanol content. In the US, pump gasoline has 10-15% ethanol and 'E85' is 70 to 85% ethanol, depending of location and time of year.
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