Failure at Track - Can no longer go WOT

Setup: N54, FBO, walbro e85 LPFP, procede, procede flash, e66, 70F.


Long story short:

• Car's been running great and consistent
• recent dyno (435whp/455wtq) looked good
• Logs JUST before track were good
• Made 3 passes down 1/4 mile
• First pass went ok, but fuel bank trim 2's got wacky at the top of 4th (trapped 115 vs normal 118-119)
• Second pass, got some sort of fuel cut
• Third pass the car went into limp just after the lights and then shut off and wouldn't start

Following the third pass I reset the adaptations, ECU, and PROcede but it still didnt start initially. Finally, it started (after several cranks) and idled fine.

I drove it home and now it drives fine but when I go WOT, it cuts-out. Looking at the logs, under WOT it goes crazy lean, maxes fuel trims and then goes into limp or just some sort of fuel cut. The only code I get is 10716 or "Cylinder injection switch off", which I've seen in the past when you run sustained maxed fuel trims.

I'm kind of at a loss as to what to check/replace at this point. When tuning, I've beat on the car for hours, doing pull after pull at WOT without any issues at all. This makes me think something failure (pump, injector, something).

I've attached some logs

• First 2 are clean logs preceding the track
• Next 3 the three passes

ANY ideas, thoughts are appreciated.

Thanks,

-TG

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