I feel like a newbie asking this question but how does a mechanical 02 sim work. The only kind i have ever heard/known of is the electrical ones that plug between the 02 censor and the plug that plugs into it..
The mechanical sims are just spacers. They space the O2 further from the exhaust stream to slow down their activity. I can't believe they work but I've read about them working on other forums for various vehicles. There are a couple of C6 owners using them with no codes setting, I will be giving them a try soon. PM cbrf4i1