Second that, don't disable AE. Set minimum temp for PE to maximum amount, Also set minimum temp DFCO to maximum amount. Hope you have an AFR gauge?
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95 C2500 Cheyenne 6.5L turbo diesel 4L80e 4:10 DB2-4911 Manual pump conversion 0411 PCM trans control 2Bar COS
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Personally, I set the command air/fuel ratio to 13:1 with a warm engine. Then set the PE air/fuel ratio to 13:1. Turn closed loop off with the coolant temp. Disable catalyst overheat protection, the EGR and charcoal canister purge. Then when I review the datalog I watch for rising or falling throttle position or MAP. If either are transitioning, I throw that data out. From there you can look at the various RPM and MAP readings and adjust your VEs based off the resulting wideband air/fuel ratio readings. A wet manifold will never be perfect by any imagination. I get it pretty close.
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