I like this car, daily driver, owned four years, about 60,000 miles are mine. Passed CA smog today. The S-3 L-jet is a great system. The numbers show the cat maybe a little weak but have two years to worry about that.
PS - added plug pix for reference
S-3 Run problems, the long and the short (injector update)
As others have in similar threads, I’ve experienced some S-3 run issues. Here’s how and what I found. The usual symptoms, sometimes ran good, sometimes not, usually didn’t fix itself hot, but ran for a month just fine. Valves clearences...