Question for the group and HPTuners:
I was told that the code had been cracked on the 2017 Cadillac ATS for enabling Flex Fuel, so I purchased the sensor and installed it. Went into HPT (w/latest beta version), and enabled the master flex fuel setting and started logging ethanol content. Results were only confusing, as the scanner only displays ethanol content of 4.3% without ever changing. In consultation with peers and seasoned tuners alike, I was told the 4.3% is an error. I was also told that under the master enable, there should be a sensor selection to enable, however it isn't there in the ATS (see photo's below).
17 ATS.jpg17 Camaro.png
My question is, has the flex fuel option been truly enabled on the 2017 Cadillac ATS 2.0T?
-Paul