Hello guys.
Here is my platform:
2010 Camaro A6 with LS3 conversion. BTR Stage 2 and a 3200 Stall. 3.73 gears.
I am working on my tune, and have developed a hiccup on a 6-3 or 6-2 downshift. My 12.7AFR log file with wideband is rather large. Here is the time hack for the event: 6'24.571". This log was not with the latest tune, just the most recent with my wideband on it. If you watch AFR right before the event, I am commanding .868 lambda. However, there is roughly a .3 second time where AFR continues to climb until it hits13.5-.6. That is when throttle slams shut and I get a nasty backfire. Then the car takes off. Since then, I put it up on a dyno and adjusted VE tables and some fueling issues. Also added a degree of timing at WOT since the log was taken. Initially thinking it may be a onset volume issue (had a zl1 pump laying around) I put a pump in it. Obviously I am missing something. Wondering if this could be a DFCO issue, or if I sped up my shifts would it help. The fuel pump log has an event with the latest tune, just not with my wideband. The time hack for that is 3'33.528". If you need any more info please let me know. Thanks for the help in advance.