91 Integra LS Auto

Hey just bought a 1991 Integra LS, and it has the automatic transmission, and it has Park/Reverse/Drive/ and then S and then 2, I noticed that when in S there is a button on the side to go from S3 to S4, but googling isn't telling me what this "S" mode is or what it does for my car.

Anyone tell me?

ok heres the deal if it is working right it should hold you in gear longer and get you closer to red line for better performance:smile: if you notice it ever starts flashing at you stop using it and swap in a stick shift. its cheep and easy. you can by a donor car for about 250