Hi BeXtreme,
I'm using the Dash command app with Veepeak OBD2 scanner. The banks 3 and 4 threw me off too. may try to reset the pids but I'm assuming the values are meant for 1&2.
so the vacuum side is interesting and am thinking the same. Kind of.. This may throw for a loop but I'm going off the fact that what I'm about to explain were already missing from the truck and ran fine in that state. I actually posted this prior to making any of these changes but I'm missing this test port. The line from the canister was hanging. Also missing one on top of the plenum.. This is a CA emission truck.
PLEASE NOTE THAT i CONNECTED BOTH OF THESE ITEMS WITH VACUUM HOSE WHEN i REASSEMBLED BUT TOOK BACK OFF TO HAVE TRUCK IN THE SAME STATE PRIOR TO TEARING APART AND HAVING ISSUES.
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This is the other item. The actual hose is missing the right angle boot is there and yes today i noticed it sucking air. There's a broken plastic line that comes our from the passenger side of the firewall that I'm guessing it came from.
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Also, the plugs, wires and distributor were not changed. only FPR and injectors.
Regarding the test. Do i test this around the plenum where gasket meets lower intake or lower intake? (This question may sound dumb after what I just explained the missing hoses lol).