I know that this string is about passing emissions, but I just jumped in with my thoughts. sorry.. but I guess I should make amends, I used to live in Tacoma, WA and according my friends who've always raced there.. fat may be happy but it won't pass the test... meaning that yes rich won't pass. if you're interested in the O2 sensor trick for tuning. The website I mentioned above does talk about readings off an O2 sensor....as long as you have a volt meter that can check the volts. it should be fairly simple to make sure your running clean. and you could put a sensor off each port if you'd like....or just move the sensor from bung to bung....just plug the holes when not in use... ok ok blah blah blah sorry... I'm rambling...
hope this helps
