I just installed my prominator tonite and got a chance to datalog finally. I was using datamaster to scan. I had the car tuned on wideband last fall by a friend but the car has always idled pig rich. The BLM's seem close or right on in most cells except fuel cell zero when it idles. Then my BLM's drop down to 108 and the car chugs. I am using tunercat and running a 165 ECM on a modified APYU bin. Where in tunercat do I make the adjustments to lean out fuel cell zero??? Thanks in advance for the replies to a newbie question

 

Okay I have been reading and from what I gather I never touch my MAF tables to tune at idle. So what tables do I look at? I do not want to change injector constant as BLM's in other cells are 128 plus or minus 3 or 4 points.