does the secondary o2 sensor become obsolete when you convert to obd1?

 

Yes, just disconnect it and or remove it. It doesn't matter. If you look at the conversion harness its blank there.

 

that's what i thought, i had it installed, but the pins ripped out out of the plug b/c i had the exhaust just hangin when i was doing some work. anyways, i thought it didn't matter, but now i have a little funny idle, so i checked my codes but i didn't have one