anyone know, i know if it dosent seat right when you put the acv back on your idle goes to hell as if you have a vaccume leak, and it sounds like a mac truck.

 

lmao i got everyone stumped.

 

ahh its a check valve?

 

Give it more than 6 minutes before you declare victory

It's a check valve. The air pump and ACV pumps air into the exhaust under some conditions. Without the check valve exhaust gases would be pushed back through the AVC, hence the sound like an exhaust leak (which it is).

 

It's also known as an anti-after burner valve according to my Mazda parts guy. Way back when, I replaced It for $18can. When removing It, chances are you'll tear It apart In the process.

It's your thread title that did you In.

 

hey, where were u guys 3 days ago.

https://www.rx7club.com/showthread.p...hreadid=247342

lol
Tim

 

LMAO. Not everyone spends every minute of the day in the 2nd gen forum. Let alone reading your golden discussions!

 

He's wrong. The anti-afterburn valve is a part of the AVC. The AAV does have a check valve but it's built right into the AVC, not a seperate part like the port air check valve.

 

Do you need that piece if you got rid of the ACV? I just put a blockoff plate there but didnt put that little piece back in.

 

Since the passage it blocked off it makes no difference.