Ethanol Content Sensor (Continental)
The Emtron Ethanol Content (Flex Fuel) Sensor is a Continental sensor that measures the ethanol content of the fuel passing through it and outputs a frequency-based signal the ECU uses for flex-fuel compensation.

Continental Ethanol Content Sensor showing the three connector pins.
Wiring
| Pin | Function |
|---|---|
| 1 | 12V or ECU 8V Out |
| 2 | Ground |
| 3 | Output |
NoteNOTE The Output pin can be connected to any Digital Input Channel 1-8.