CSL Conversion wire routing

[George Hill]

I'm converting a car to a CSL style plenum using a MAP sensor in the factory air rail and the IAT in the plenum. I think I want to wire these into the loom in the stock locations. Can anyone tell me or provide a pictures as to where these wires enter the loom itself?

I'm assuming the IAT enters one of the unused "ports" on the wiring housing under the TB actuator?


What about the MAP sensor does it go into the injector harness where the shut-off valve wiring is?

[Slideways]

Those are some nice TB covers

heinzboehmer , terra or NZ_M3 would know the factory routing for these wires.

This is the part numbers for the engine harnesses - 12517833366 12517833336 and a link to a picture of one of them - https://www.ebay.com/itm/193134530825

Edit: Found this old DIY, but the pictures are not that great -

https://www.m3csl.de/images/diy/airfilter/openbox-1.jpg

[George Hill]

Those are some nice TB covers

Thanks, I', happy with the TB covers. I also have covers for the exhaust and intake ports along with all of the oil ports. I'm redesigning them to have seals so they are truly "air tight."

This is the part numbers for the engine harnesses - 12517833366 12517833336 and a link to a picture of one of them - https://www.ebay.com/itm/193134530825

Thanks for the reply, the PN# we want for this is 12517833336, I had googled it and found one harness and it looks like it verified my thoughts on the MAP sensor, but its not 100% clear. The IAT is not distinguishable in its routing as well. Just wanted some confirmation before I just made it happen, ha.

[heinzboehmer]

There's some shots in this video that show the harness, but it isn't super clear: https://www.youtube.com/watch?v=VDlltvcAUzU

Your assumptions make sense to me, but I'm not 100% sure what the factory wiring is. NZ_M3 would know for sure.

[Slideways]

There's some shots in this video that show the harness, but it isn't super clear: https://www.youtube.com/watch?v=VDlltvcAUzU

Your assumptions make sense to me, but I'm not 100% sure what the factory wiring is. NZ_M3 would know for sure.

Completely forgot about the Redish video - skip to 1:46:00

https://www.youtube.com/watch?v=7ZY-pORsDYE

[George Hill]

Thanks for those leads, I still don't see 100% but I think its enough to know the direction I'll take with it.

[Slideways]

Thanks for those leads, I still don't see 100% but I think its enough to know the direction I'll take with it.

I'm fairly sure the cable marked in yellow is the AIT plug and the flap motor plug (red and orange arrows). The blue arrow is a plastic Y splitter that splits the two connecters. It all routes near the oil pressure switch. I want to say it routes through from the cable box under the ICV.