here's an update,
Put another couple hundred miles on the truck yesterday.
Open loop.
Turned stock MAF and VE blending on with stock tables.
Tune was pretty far off, I reflashed 3 times before leaving town.
Another reflash after about 30-50 miles, and another at about 100.
Reflashed and filled up. Truck seemed alot better and was running a lot closer to correct.
MPG on that tank was 12.9.
Not bad for a 454 out of tune, considering when I bought it the best it could do was 12, with easy pedal hiway gas station to gas station driving. You know optimal. This route was through a mountain pass changing elevation of about 2500 ft.
Plus I put the pedal down a few times for the data log.
Went another 100 miles back home without another reflash. Same route.
My wide band started acting up about halfway, so open loop logging might be over until resolved.
Filled up when I got back and that tank produced an MPG of 14.5.
I think I am close enough now to finish it up with closed loop.
This time I did not fail the MAF and tune secondary VE. Just started out with main and MAF. Applied changes to both at the same time. Had thought a while back that might work good, but never got enough of a chance to check with mechanical issues. That method seemed to work very well.
I think I am going to use my last open loop log,then turn cl back on and see how it does.
All in all I think the injectors are set up correctly, or at least goodish enough.
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