Flex Fuel Sensor reading 179Hz _ Fuel Contamination?

[1bad68ls]

Hi Guys,
I am looking for help with a flex fuel sensor issue. I enabled [flex fuel] and my flex [fuel sensor] in my E67 controller for my LSA engine for the first time. The car has 92 octane gasoline in the tank. With the key on, engine off, the scanner shows [Ethanol Fuel % (SAE)] at 100% and [Fuel Composition Sensor] at 179Hz. The car will flood if I try to start it with the Ethanol Fuel at 100%.

I understand the Conti sensor outputs >170Hz if the fuel is contaminated... however I am unclear how the fuel can be contaminated as I have less than 50 miles on the car (new car build). I confirmed the sensor is pinned correctly (Pin1-Vcc; Pin2-Grd; Pin3-Vout).

I'd like input if you have experience with the sensor outputting >170Hz frequency. Should I replace the sensor?
Thanks!

[LSandlteditor]

More than likely you didnt pin the sensor correctly. What is the default set too?

[1bad68ls]

Thanks for the feedback! The default frequency is set to 65Hz (15% ethanol). If the sensor was not reading properly and went into default mode, I would expect it would be set to the 65Hz.... but it is stuck at 100% Ethanol and 179Hz.
Screenshot 2020-09-29 170637.png

Here is a pic of the pinout that I used for the sensor.
Conti Flex Fuel Sensor Pinout.png

If the sensor reads 179Hz, it suggests to me the E67 is reading a PWM signal from the sensor. I would like to know if the sensor will come out of this mode eventually or if the sensor needs to be replaced.

[LSandlteditor]

What pin did you pin it to in the e67 computer? That is what i'm asking.

[1bad68ls]

LSandlteditor, thanks for the help!

The sensor out goes to pin 5 in the blue connector. I am positive it is connected properly because when I have the Key On Engine Off, the scanner shows the 179Hz (& 100% ethanol) but when I physically disconnect the sensor's connector, the scanner shows 0Hz (0% ethanol).

Do you know if the sensor needs to be replaced or is there another issue?

Thanks!

[5ft24]

if the sensor is truly reading 179hz, and the pinout at the sensor itself is correct, I would suggest the sensor itself is toast.

[1bad68ls]

Guys, Thank for the help! I replaced the ethanol sensor. The new sensor works well and shows 10% ethanol (which is what I expect for pump gas).