pull which fuse(s) - Canadian Corvette Forums ll C7 have valves for V4 mode in front of the mufflers. We call them AFM valves. Fuse 32 controls the AFM valves, and pulling fuse 32 or AFM connectors will result in a CEL and awful sound in V4 mode. NPP cars have electronic valves in the outer exhaust tips. We call them NPP valves. Fuse 41 (2014) or fuse 42 (2015) controls NPP valves. 2014-2015 Chevy Corvette C7 Main Wiring Fuse Block New OEM This is the main wiring junction and fuse block box for 2014-2015 Chevrolet Corvette C7 Stingray and Z51 vehicles. This item mounts under the hood and has lots of fuses and relays inside it. This is the main engine wiring junction box. New. Never Installed. OEM Part GM Part # 23244877 (number on the item) Item is number 6 in the GM diagram. C3 Corvette Fuse Box Diagram - Wiring Forums 1981 Fuse Box Issue – Corvetteforum – Chevrolet Corvette Forum, size: 800 x 600 px, source: wwwetteforum. Here are some of the top illustrations we receive from different resources, we hope these photos will work to you, and also hopefully really pertinent to what you desire concerning the C3 Corvette Fuse Box Diagram is.