The Fact:

-99 civic ex, originally automatic.
-did a auto to manual swap but never changed intake manifold, tb, and iacv

questions:
-can i get a bare manual intake manifold and change everything over?

anyone have a diagram of what goes where with the crossover?

any help is appreciated. thanks!

to save me trouble, anyone have a complete manual intake manifold for sale?

 

check ebay for parts. or craigslist
AT iacv and TB (on some) is dif.
good job though

 

The IACV from the auto is on the throttly body, on the manual is on the intake manifold. You can use the throttle body from the auto just plug the IACV in on the manifold. Other than that, everything is pretty much the same. I think your car has a 3 wire plug for the IACV, you will have to swap some pins in the ECU and splice in a 2 wire plug. You will also need the manual ECU.. I think your car takes a P2T. I have a bare Y8 manual intake manifold, if your interested PM me an offer.