I did some logging the other day, and I couldn't help to notice that my O2 sensor looks like it bounces rich to lean, and I keep getting a rich/lean flag. Can someone take a look at my Logs and give me some ideas? The recent logs are here.

I don't understand if this is normal, or if something is wrong. I have a new O2 sensor, and new injectors. I also don't understand why I have to put the ECM into ALDL mode to get any data, is this the case with other people with 165 ECMs? Would I have to do this with a 8192 baud ALDL cable? Is my 160 Baud ALDL cable causing me to need to be in ALDL mode?

Help? I am feeling dumb.

 

The rich/lean flag should go on and off like that. The computer is constantly correcting itself. From looking at your BLM's you are running just a tad rich. The BLM's should be at 128. Are the new injectors still 19lb? If they are larger, have you changed the injector constant on the chip?

 

The injectors i got were from a friend who got them from a friend... they were originally out of a camaro with a 305 (I cheked the numbers on them) they are supposed to be 19lb, but they have been rebuilt, I have heard that injectors can be "resized" but I don't know if they were. They are supposed to have about 1500 miles since rebuild. Do my logs look pretty normal otherwise?

Anyone Know about my other questions about having to be in ALDL mode, and if a 8192 Baud cable would fix that?