APE Flex Boost, Manual

Page: 25 / 28

3 24
DC Voltage Output
The Flex Boost also has a 0V-5V DC Output signal that can be configured
to send out either one of the two 5V generic gauge inputs or can be
configured to send the E85 content out as a DC voltage: 0V = E0 content,
5V = E85 content. Note: The DC Out signal has a weak drive strength, if
feeding into an ECU with a pullup resistor, the Flex Boost may not be able
to drive this signal all the way to ground. In this event, calibrate your low
voltage point accordingly in your ECU. For example, if DC Out is
configured for ethanol content output, then gas(E10) would normally,
put out 0.6V,if however your ECU is reading 1.6V when the Flex Boost is
displaying E10, then you should configure your ECU input as 1.6V = E10,
5V = E85.
Raw Ethanol Sensor Output
The Flex Boost has a raw ethanol sensor output with integrated 10K
ohm pull-up resistor to 5V that can be sent to stand alone ECUs.