I really wanted to do a CLT, but I just havn't been able to yet. I did decide to just replace my O2 anyways, and as I pulled the old one out I shook it a bit and heard the cracked element jingling around inside. I put a new sensor in - the less expensive type you have to solder the wires together- and my A/F gauge works perfectly. Not to mention, it is smooth and doesn't miss at idle, the power seems up a bit, and I think its a little less rich.
What I noticed is that under normal acceleration the gauge swings between lean and rich like it is supposed to. However, at idle, constant throttle, and full throttle my A/F gauge reads almost full rich. I understand full throttle being richer, but shouldn't it be leaner at idle and constant? Also, isnt the stoichiometric A/F ratio most desirable for maximum power and efficiency? Thanks for your help so far
-by the way ernest hill, I recently had my injectors flow tested, and the were within 4% of each other. this cost me 30$ at a shop here in tucson.