Very few things I would bet on. I would bet that the DV clears your under boost code though. Another common failure with these cars that, thankfully, is a fairly easy and cheap fix. I keep my $50 code reader in my glove box. I seem to get a code for a fuel system leak from time to time. Usually a day after my cars tell me to tighten the gas cap. Going to have to replace that soon I am sure.

 

Yup- it was the DV. Changed it tonight. Had a small tear in the rubber plunger. Car is back to its snappy self. No more lugging when pulling onto a road.