Limp behind a higher pair limp? (Stud)

[ceegee]

1.
If I have a low pair deuces through nines kicker isn't higher than the limper's door card. Should I limp behind a limp of a premium door card (ten and up) or fold.

2.
Also should I limp a lesser premium pair door card if the higher one limps or should I complete putting him on a drawing hand?