broken plug - Honda Prelude Forum

jonnylaw86 · 10-04-2003, 10:42 AM

While taking off the intake manifold I broke a plug, it plugs into a black plastic box screwed into the bottom of the intake. I couldnt find it in my manual and I was wondering if anyone knew what it was, I think it is a emissions sensor but im not sure.
Thanks for the help,
John

jonnylaw86 · 10-04-2003, 02:29 PM

Just realized this is in the wrong forum, it should be in 4th gen could one of the mods move it please

Thanks,
John

vipastyle · 10-04-2003, 03:17 PM

Moved, and please fix your sig.

Forum and Signature Rules

yield · 10-04-2003, 03:39 PM

I believe that would be the vacuum that opens the intake control diaphragm, which opens the butterflies in your resonator, giving you more air above 4200 rpms... I think.

I think it is a sign that you should get rid of your stock intake and buy a CAI. Otherwise you should replace it or else you are going to be starved for air up top.

jsmooney · 10-05-2003, 03:02 PM

yep, what yield said......you may not think so, or you may not even notice it when you get a CAI, but when you go from CAI back to stock, its a BIG difference and it helps gas mileage too