Quote:
Originally Posted by knucklesplitter
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.
Did you bump them up or down?
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I am aware of the altitude table. Very stock as I recall.
And yes to the bump direction.
Yes, I know less duty cycle equals lower boost, or technically, I guess, makes it more likely to catch the rise earlier or less likely to overshoot and hunt. I actually just dropped the stage 2 low and high tables back in which were both lower and a smidge higher respectively as I recall and went for a couple test pulls on the highway and things were much happier.
Again, I am not blaming anyone or anything other than myself at this point, except maybe Subaru for a crappy piston design.
I should have spent a couple hours logging and tweaking Thursday night and did not. I should have dropped by DB Tuned and had Paul run a few pulls on the Dyno and make some tweaks or taken it down to Mike at GST after I dropped the new TGVless engine in months ago and did not. Needless to say, I will not repeat that mistake. No tuning just at Reno altitude.