Yet another thread for auto to manual swap. I have a 2000 Civic LX Auto and wanting to do the manual swap soon. Luserkid's writeup shows to change the intake manifold and throttle body into a Y8 but I would rather keep my Y7 intake mani if possible to reduce the cost
https://honda-tech.com/forums/honda-...4pics-1337459/

According to Majestic Honda, the IACV for the auto and manual are different part numbers:
https://www.hondaautomotiveparts.com...hrottle-body-1
auto IACV: 16022-P2E-A51
manual IACV: 16022-P2A-J01

The part numbers for the throttle body are different:
auto TB: 16400-P2E-A51
manual TB: 16400-P2E-A01

I have everything except the throttle body and it is not available anymore. I am not sure if the parts numbers of the TB are different because the IACV is packaged, which has a different part number. I cannot find documents (at least with my searching skills or lack thereof) stating that the TB for auto and manual are the same. Can anyone confirm? I have looked in eBay but I cannot find any listing that specifies that the TB came from manual Y7.

 

I am pretty sure that all Y7s have 3-pin IACVs. you would only NEED to change the manifold if you are using an ECU for something other than a manual Y7.

If I remember, I can check my FSM to see what it says about the IACV differences auto to manual. my guess is that it's not significant in this case.

 

I will be using a Y7 manual ECU. I know that both Y7 auto and manual IACV are 3-pin. My confusion arises with the TB if the Y7 auto TB is the same as the Y7 manual TB.

 

Also, the part number for the Y7 auto IM and Y8 manual IM are the same. 17100-P2F-A10

I think what you are saying only matters if i plan to replace my IM into a Y8 manual, which i dont plan to, to reduce the cost of the swap

 

Anyone?

 

This is untrue... the EX Intake Manifold part number is 17100-P2P-A10. They are not similar at all...

I suspect you could use the auto T/B with little to no issue... and if not, go hunt a manual LX T/B from your local "pull-a-part" salvage yard and install it. Either will fit your auto I/M.