Timing crashes and car dies after adding e85

[JASON11WS6]

Working on a flex fuel upgrade for a pretty much stock LT1 Camaro SS. Car ran fine and as soon as I put E85 in it (30% right now) the car dies as idle given enough time. You can here it when it's ready to die and the scanner shows it spikes the timing from 12-13 to 20+ and then crashes to 1-2 sometimes negatives. It'll do it a few times and then die. It's almost like dealing with a cam. Any ideas? I though it might be the alcohol adder table but I zeroed it out and it still does it. Not sure what the cause is but the car runs fine other then that.

[Higgs Boson]

what does the flex sensor show in the channel list as your alcohol %? I'm not on an HPT computer.

[JASON11WS6]

It was around 35ish. I updated the flex fuel mult vs comp ratio and it was fine.

[Higgs Boson]

so you got it then? all good?

[Ben Charles]

I’ve seen this happen along with throttle closing when out of fuel (didn’t look at log) the ECU trying to save itself