ShermanLGT Posted June 27, 2014 Share Posted June 27, 2014 Hey guys, so I just received my AP V3 today and hooked it up, flashed Stage 1 +SF. My mechanic setup is some unknown aftermarket up pipe, stock turbo, custom 3" Catless downpipe with no rear O2 sensor. I'm throwing a rear o2 sensor code for that. NOW, the issue is most seen in idle and climbing thru 2nd gear. At idle if I rev it slightly the rpm drops after and then nearly stalls until it recovers. And more disturbingly, the car bogs climbing thru 2nd, roughly between 2700-5000 RPM then appears to recover and drive right, then ripping thru 3rd and above seems ok. Is this normal? Part of the ECU learning? Additionally, the Air/Fuel ratio registers between 12.xx at the lowest and 20.xx at the highest, I have the race tune software for tweaking and I could learn a little on it. But in the meantime I'm seeking answers. Thanks! The car is a 2005 LGT 5MT attached is the datalog from my ride home, i went WOT for logging purposesdatalog5.csv Link to comment Share on other sites More sharing options...
ZeeMalkMan Posted June 27, 2014 Share Posted June 27, 2014 If you have an aftermarket downpipe you should be on stage 2, but the ots maps are designed for a catted downpipe. Link to comment Share on other sites More sharing options...
ShermanLGT Posted June 27, 2014 Author Share Posted June 27, 2014 the issue was even worse on stage 2... stage 1 is still not ok but appears to be better, im concerned about that bogging. unfortunately the tuner that works with the shop i go to is fully booked for his upcoming visit too Link to comment Share on other sites More sharing options...
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