Im runing a P0325 code for a KS malfunction. Im running 91 Octane right now but is there any urgency in replacing the KS besides for restoring some HP?

 

stick in a 470k ohm resistor and be done with it... it 99c for a 5 pack at radioshack

 

There is no urgency besides less fuel effeciency and less hp. So essentially, the car wont leave you stranded because of it.

Get a real KS, don't cheap out on a resistor.

If you do choose to cheap out, this is probably the best time of year to do it. In the spring, toss a real KS in there.