sometime last year I had this happen and never really figured out why.
But then it happened again and I feel like this is important enough to bring to light-
I am sure the engine could have hydrolocked or at the very least washed down the cylinders with fuel because of this one simple thing
See what happened
omfg.png
When it hits PE, it goes insanely rich. Commanding 0.5 EQ ratio. Injector duty goes full open the engine coughs and dies flooded.
I tracked it down to the table "IAT adder" for PE enrichment. The table suggests you can use any value from -2 to 2.0
Pic of table responsible:
table.png
Well, don't try the negative numbers! I pulled about -.005 and the negative must do something to the fraction EQ ratio .... it commanded 7:1 and later 0.5:1 as above! (400% duty cycle)
Operating system is 125 "2-bar"
411 ECU gen3