Flopped 2nd Pair, fold on turn too weak?

[popesc]

Was my fold on the turn too weak here? (I don't have much of a read on opponent, appears a little TAGy.)

PokerStars 2/4 Hold'em (10 handed) converter

Preflop: Hero is MP2 with K[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/heart.gif[/img].
<font color="#666666">4 folds</font>, <font color="#CC3333">Hero raises</font>, <font color="#666666">1 fold</font>, CO calls, <font color="#666666">3 folds</font>.

Flop: (5.50 SB) 9[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">CO raises</font>, Hero calls.

Turn: (4.75 BB) Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">CO bets</font>, Hero folds.

Final Pot: 5.75 BB

[beset7]

I'd fold preflop. If it was folded to me in the CO or Button I might attempt to steal but in MP I can't imagine playing this hand. Seeing that you did I'm folding to the flop raise against a TAG.