I also believe the specificity of the drive cycle is not applicable in our situation. My monitors set in the past easily and without all of the drama of these specific drive cycles. I just tried to drive in varying situations, and it worked. There would have to be a reason as to why it would have gotten more difficult if not impossible to get readiness on these. 2ndary air monitor test is simply, car enters closed loop (warmed up) and then runs the pump to see that the 02 reads lean. I'm thinking wiring/CAN or ECU. Starting in 96, you can't simply swap ECUs as they're VIN Coded. Supposedly for theft protection. Sure, someone's going to just steal the ECU and not the whole car. I've switched out the Diagnostic Module as that is not coded and that appears not to be the problem as in another car, my diagnostic module works fine.