I have been chasing a 1222 code and have searched and read most of what's on this site for causes of a 1222 code.
I have replaced O2,plugs,wires,cap,rotor various vacuum hoses. I most likely have a vacuum leak. If I was reading right, a bad oil dipstick O-ring can cause a vacuum leak.

To take that source of vacuum leak furthur, I know I have a bad pan gasket. It leaks and I found a hunk of it hanging out of the side of the pan when I looked at it on the ramps.

My question - Can a bad pan gasket cause a 1222 code?