Attached is a log, my current tune and a stock 2010 A4 B8 tune.
Mods include: CTS High flow cat, and custom exhaust (Magnaflow 11226 muffler, Vibrant Performance 1792 Bottle resonator)
The problem I'm having is the lean spike observed in the log file, I know it has something to do with the transient fueling, but after trying a bunch of different ways, I just copied and pasted from a file I would reference from time to time. It still didn't work. What do I need to log so that I can tune it properly or has anyone had this issue before?
Secondly, I would have thought that messing with the overrun parameter would've made some burbles and even slight pops, but I'm clueless on how it works. Can someone explain it to me?
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