View Single Post
Old 22-02-2006, 06:12 AM   #17
geetee
Senior Member
 
geetee's Avatar
 
Join Date: Feb 2003
Location: Edinburgh, Scotland
Car: A Mazda 323F BJ Sport.
Posts: 1,064
Send a message via MSN to geetee
Quote:
Originally Posted by EVOlution
G'day, I have just purchased a 92 model BG Astina, it's twin cam and I guess it would be a 1.8L then?
Anyway, I fitted a pod filter, I tried removeing that air resonator box after the AFM but the car wouldn't idle with out giving it a prod on the accelerator to keep it going, I tried blocking the hose up and it was worse - no idle at all.
So, I was wondering, could I run this hose that goes to what might be the IAC straight into the intake pipe without the resonator box. I'm guessing it should work but then why did they go to the trouble of putting the resonator box in.....
i would say this is some kind of air by-pass system, so the engine can idle when the throttle butterfly is closed.
disconnecting it will basically mean you are introducing a leak to the intake air pipe, and the by-pass air will not be controlled by the AFM. plus if you block the pipe off, then there will be no air at idle at all. hence, no idle.
the AFM also has small ducts on either side of the flap. probably for idle air.
geetee is offline   Reply With Quote