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When I start my car for the first time of the day it will stumble for about 30 sec and run lean. Any other start runs fine. What I have seen from datalogging is when cold on the cold base table commanding .89 my wideband gauge is reading right around 1.00. Which makes me think the maf xfer is...

I'm new to tuning but figured most of it out. I have a 99 GT. I have the maf transfer dialed in perfect and idle, part throttle and WOT are all done. I'm only having a few issues. First is cold start. Only the first start of the day idles drops low for about 30 sec and sometimes stalls. ISC...