I think Jim's point was more that if you're following the instructions for the 2.8, you're already in the wrong ballpark. You'll want to find the directions for testing/adjusting the TPS for the 2.6. There is no guarantee, and relatively little likelihood I'd wager, that the two processes are the same. You'll almost certainly need your meter to get it set right, but you'll have to find out just how to go about it with your particular set-up. It's kind of like trying to bake cookies with a cake recipe. They're related, but not really the same thing.

James