I bought the car with 17,200 miles. Car is all stock except k/n air filter element. I put almost 700 miles on her and every monitor set except the catalyst.. scratching my head here and just about out of time here with my temporary registration from out of state and i am in CA. I finally said F it and pulled the battery because one of the smog techs said it is rare but the Catalyst monitor could stick? Starting over but I really hope someone has an idea of something to try because I have done so many drive cycles and satisfied all of the scenarios it asks for.
TIA
TIA