I have a 2005 Cadillac CTS-V. It is running on operating system 24508208. For some reason I cannot read MAF Hz on the Scanner in order to set up a Histogram to adjust my MAF curve. I have done it on another vehicle but for some reason when I plug into the CTS-V it will not allow me to read the MAF Hz.
I cleared the last vehicle in scanner and re-connected and it still isn't there.
I thought maybe something was lost with just writing calibration so I did a write entire and reset the vehicle in scanner again and I can't get it to come up as an option under PID-Engine-Airflow....
I am lost on this so any help you might have would help. I have voltage at the MAF sensor and a good ground. I have the professional version of HP Tuners. Is there a way to take the signal wire from the MAF sensor and use it as an input? Or is there more to calculating the Hz than that.
Thanks ahead of time for your help and suggestions.