Discovery 2 v8 Sai delete

I thought I would get rid of SAI as my disco is now a manual and it now has the ecu from the prefacelift non Sai disco.

Reasonably straight forward to do. Once the ECU is swapped over it's just a case of remove the SAI hardware.

You will either have to change heads so they don't have the SAI ports or plug the ports with something. For now, I went plugging the ports. For this I cut the top threads off of the original inserts, drilled out the middle so I could slide an M10 bolt in there and then welded round the underside of the bolt head to the insert. I plan to build an engine for it soon so I will get the correct heads.

Everything works well no warning light etc. I do have one question for anyone that knows or who has a pre facelift discovery 2 v8.

The question is where the vacuum lines are on the plenum you have the the stub where the feed for the SAI was. I know I probably have to plug it but wonder if it serves a different purpose on the pre facelift models. Anybody out there know?

I think mine is used by the LPG valve dump, but otherwise I don't think it is used.

Peter

On the donor vehicle I have here that's what it was used for aswell I think. I've blocked it off with a piece of vacuum pipe and a plastic rivet in the end. Thanks for the confirmation Peter!

How did you swap the ecu.the gentleman or even the owner before him had the head swapped and the plumping removed.ied ignore the warning light if I live in the state I bought it in but I can’t in New York how did you clear the light .dis you have to pair the BCU? Did you have to do any crazy programming

Hi I swapped the ecu, bcu and kept the keys from the donor vehicle as I did a manual swap and it all worked.