The chip won't make a huge difference.
Winter is rough on cars. Since you haven't said there's a CEL on, it would indicate to me the car is working within the manufacturer's specs. So technically, there's nothing wrong. If it's really bothering you, put a few extra pounds in your tires, change the air and fuel filters, pull the battery to reset the ECU, and maybe consider new plugs/wires. Otherwise, it'll probably get better once it gets warmer.
[O o)O=\x/=O(o O]
The things we do for girls who won't sleep with us.
Patrick says:
dads is too long so it wont fit
so i took hers out
and put mine in