CleanSC

Looks like there was a change at some point and/or the convertibles are different.

2024 is too new and my service information doesn't have anything on it yet so I can't check the wiring diagrams to see how that circuit is powered.

Dukeaudio

Got it. Will check my '24 vert...

np20412

I can update once I get delivery of my 24 coupe.... If I ever do lol

Dukeaudio

Just checked. My '24 vert reflects the same, no fuse in EFI No. 5 spot.

Badhobz

My 2022 vert has it exactly where the diagram says. Efi 15 right below those 2 30amp ones.

strange that they would make this change in the 2024 MY

Metal1

I pulled the fuse on mine. It works,

Barncobob

is it obnoxiously loud? might have to try it just for kicks.

Metal1

No. I did have to turn the sound up on the entertainment system though.

Easy to change back if you don't like it.

Young04

No. Lots of stock cars are louder than the LC with valves forced open.

CleanSC

So I cross referenced the part number on the newer fuse box cover and it's for 2024 LC only, both V8 and hybrid.

So something changed in MY2024. I'd love to get my hands on the wiring diagram for the '24s to see what they changed.

We will eventually find out.

np20412

Guess I won't be pulling the fuse right away lol

zmanH2

Here also to confirm that the 2024 is definitely different (Vert in my case).

Why would an EFI #5 fuse (Electronic Fuel Injection, I assume) be required on 23s down and not the 24s......hmmmmm.

CleanSC

Likely they decided to power the valves another way as they optimized the design. Chances are they are now powered on another existing circuit with other systems which means you can't use the fuse method without disabling other things.

So you guys with 2024's, just do it the old way and unplug the exhaust valves.

np20412

Isn't there a way thru the trunk that doesn't involve exposing and subsequently wrapping up the connectors underneath? I only want to do it if it's easily reversible without having to get under the car

CleanSC

Yes, there are the two connectors at the valve modules you can unplug. These can be difficult to get to. However, please note that convertible trunk floors may have differences in how much equipment is tucked into that space. Additionally, we know that the wiring was changed for MY2024 so the fuse no longer exists. There may be other changes hiding in there so until someone confirms the 2024 setup, we can't be sure.