Quick question about the symposer, mine has an electrical connection, if I delete it and do not plug that back in, would it throw a code? What do I do? Please see pics.

 

Good question. When I has the RRS apart recently, I couldn't find that answer, so I just left everything in place and made a blanking plate out of aluminum sheet to block off the hole in the supercharger. I just sandwiched that plate between the hose and the supercharger with silicone to provide a good seal on the side of the supercharger. In my case, that hose to the supercharger had a crack and became a vacuum leak that was causing misfires and lean codes on that side of the engine. I am glad to have it disabled. I will do the same with my XJL soon.

 

If you remove the entire assembly you will need a block off plate to cover the hole. There is an expensive LR part or you can make your own plate as it's just a flat plate.




Plus you need to block off the vacuum hose. So different degree's of removal!
Here is my thread on removing the symposer on my 2014 XJR

2014 XJR Symposer Removal

With the severe lack of room at the back of the engine I went with a simple plugging operation. When I remove the SC in the future I might take more of it out.
I have no errors with how I did it.
That's a lot of work to remove all of it too!
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