Having and interesting issue with my MAF relocate(unless this is normal IDK). I placed my MAF about 16" from the throttle body on a 2.5" IC tube. While WOT shifting, right when the throttle body reopens, the MAF reads a spike in air before the turbo spools. I speculate this false reading is happening because the manifold is under a high vacuum and when the throttle plate opens it sucks all the air out of the IC tube and the MAF meters this rush of air and fuels accordingly. Periodically(say 1 of 50 shifts) during a shift event the car will fall flat on its face for a split second from the extra fuel, then resume like normal. Has anyone else encountered this issue? I am guessing the solution is to use the stock size 3" intake tube to create more volume and/or move it a little farther down to roughly 24" from the tb. It is very obvious in the logs, but I want to make sure I am speculating correctly before I revise my MAF location...Also I checked logs prior to relocate and there are no signs of this when the MAF is in the intake tube. Also happens with or with out 5th inj use. I will post a log tonight...forgot my laptop.
Updated with picture below so you know what to look for and attached 2 logs. look at all the WOT shift points and you see quick maf blip. It happens most of the time but some are not as bad and its usually so quick it is not perceivable while driving.
The Yellow circle is the maf spike.
The Red circle is the over fuel.
The White shows IDC/IPW.