Reviving this thread... Bc ever since I checked my cam follower, startups like this began to occur. Checked the cam again, even replaced it, to see what I did wrong the first time, still start up weird. Not sure manWas far better for a while but sadly, issue started to return recently. Now almost as bad as it ever was. Not really up for throwing major funds at this PIA. A number of items I will likely check out as a DIY are fuel pump relay and fuel pump control module. Both are relatively cheap and easy to get at.
My main lead at this point is lack of fuel pump priming noise when driver's door is opened. Door switch is working fine since I get dome lights and door open indication on MFD.