
Originally Posted by
blindsquirrel
Where is "O2 delete" on a Gen 3? Do you just mean the DTCs? If what you're looking for is the Catalyst Test & Post-O2 Test, those have never existed in any Gen 3. Make sure you aren't trying to follow steps that were written for Gen 4. (and, even those are removed from Gen 4s in recent editor versions)
You have to leave the sensors plugged in to stop it from repeatedly running those tests. It'll run them once and then mark them down as failed and won't try again.