I went out in the dark and wet last night to measure my TPS voltage. It came back as .24v so I adjusted it (had to remove plastic) to .35. Talk about fine adjustment!
I can't say I really notice any difference. Maybe less lag when you accelerate from idle. Maybe.
As for the rich running I figure it probably isn't really. Probably just me having nothing better to worry about. Perhaps I should put my mind to fisxing all of its oil leaks instead.
Hope your arm isn't too bad Jessie. I assume that relates to your surgery from 1-2 years back?

