A digital input can be used to collect data from an ethanol content sensor. Both GM Siemens and Continental ethanol content sensors are supported and use the same calibration.
Ethanol Sensors also output a Fuel Temperature value which is shown as Ethanol Temperature but if no Fuel Temperature Analog Input has been setup then the same temperature also is also written to the Fuel temperature runtime which is used for modelled fuel calculations.
Note: Some Ethanol sensors require the DI pullup to be turned on to work.
Ethanol Settings
The following settings exist for configuring an ethanol sensor:
·Ethanol Sensor Fault Value - The value used by the ECU if a fault is detected in the ethanol content sensor output. Specify a value which will lead to the safest level of tune being selected by the ECU.
·Ethanol Sensor Lockout Time - The amount of time the ECU will wait before reading ethanol content from the sensor. For the ethanol sensor to accurately provide the level of ethanol content fuel needs to be flowing through the sensor. During this lockout time the ECU will use the last ethanol content value read from the sensor before the ECU shutdown. This allows the ECU to provide cold start enrichment without having to wait for the ethanol content sensor to provide a reading.
·Injector DC Clamp - The Injector Duty Cycle (primary injectors) at which the ethanol sensor reading will stop being updated. This is used to prevent incorrect readings at high fuel usage when there is very little fuel in the return line running through the ethanol sensor.