BFL13 wrote:
If the air is to cool the catalytic converter, would one pipe be for IN and the other for OUT? If the red circle thing is the pump that would be IN I guess. Would it go on the pipe at the front of the cat conv as an intake, and the one on top in the middle is for OUT? Is that to the engine for recirc or is that only with the other smog system?
The other pipe goes along the top of the right side of the engine, has a short rubber hose connection to another pipe going farther forward passenger side, then I don't know where it goes.(recirc?)
I don't have a clue, but have to think it matters which goes with which.
This is where I am unclear. From what I've seen and read, it provides additional air for combustion efficiency in the catalytic converter (remember way back they were touted as "secondary burn"?), hence the check valves.
I don't know what that extra missing piece is, though. I read about diverters and things but they were on different engines. I haven't found a good, clear description or diagram of the system and its parts.
Even when I found parts listings, no pics :(
Maybe someone knows if both pipes push air?
