Commanded AFR not a valid PID?

[Rocketman69]

Anyone know why I can't select "Commanded AFR" as a valid PID for scanning? Seems odd that I wouldn't be able to monitor this. Thanks in advance.

[Black02SS]

Is the PID available and X'd out or just not there? What vehicle are you trying to log as well.

[Rocketman69]

Chad,

The PID was available, and X'd out. Wierd thing is, when I went to play back the log file once I got home, the PID wasn't X'd out in the PID list.

Vehicle is a '99 K1500 Chevy Z71 pickup. L31, Vortec 350.