Yes I know the pocketlogger reads knock, but it says that it's knocking too. They both say it is knocking. Today I had the SAFC set at -30(HI) and it is knocking horribly, also you can see black smoke coming from the exhaust when I get on it(that means too rich correct?) And won't the computer alter the fuel maps if it senses that it it running too lean? I'm so confused because I didn't know if I had rich knock or lean knock, and I was just using the O2 reading to figure out if it was too lean or too rich, but it doesn't seem to be working properly, so now I'm stuck. Oh and does anybody know how I can get the logs from my pocketlogger to my computer? Again I have the MMCd software.