How about this one from autozone do you trust it?
http://www.autozone.com/R,967706/vehicleId,2326103/initialAction,partProductDetail/store,1690/partType,01160/shopping/partProductDetail.htm

Acually when I was adding a vehicle to the part search area it got to "engine" and it said this:

6 Cylinders 1 3.8L SFI SC OHV (found in 17% of 1997 Pontiac Grand Prix)
6 Cylinders K 3.8L SFI OHV (found in 76% of 1997 Pontiac Grand Prix)
6 Cylinders M 3.1L SFI OHV (found in 07% of 1997 Pontiac Grand Prix)

I chose the middle one:
6 Cylinders K 3.8L SFI OHV (found in 76% of 1997 Pontiac Grand Prix)
and got that resistor part, hope its right.