GTPDad I was wondering , when I made a custom exhaust for my GA it set of my o2 sensor and I had to buy a o2 simulator. I told them I have a 3400 v6 and they gave me a simulator for a 97-up sunfire/cavalier. I sent it back and they sent me a new one. It was the same one. I tried it and it worked great! So maybe pc upgrades for sunfires and cav's pc's for programmers on 2.4's? Or maybe if you know that wont work let me know cus that simulator made me curious.