This prolly has nothing to do with the failure, but...
There is an altitude compensation table in the ECU file. If the table numbers are stock or stock-like the ECU will automatically add boost as you descend in altitude (and vise-versa). If you were running high boost up here then you may have gotten too much down there. Always best to set the overboost fuel-cut parameter below failure-inducing boost levels.
Quote:
Originally Posted by Dean
I had some initial overboost but slowed and pitted immediately and bumped all the wastegate duty cycles.
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Did you bump them up or down?