well Im stuck.... I cant seem to find out what plugs into the end half of the intake pipe... I know the other half has the air pump outlet.. but whats the input in the other end for?
ive looked through the manual but cant seem to work out what it is?

can someone out there tell me what plugs into it please?

 

i think the later DBW AP2's have an extra sensor. you can just plug it.

 

ive got the ap1...
its just after the bend in the pipe, by the airbox...I dont have the airbox installed , but I imagine it must be just before it.
the plug is on the engine side of the pipe...-
surely someone here who owns a s2000 can tell me?
would someone mind having a quick look under their bonnet?

 

That one goes into your valve cover next to your oil dip stick. If you want to see a pic search google for s2000 engine bay......