Still some uncertaintity..
After reading the threads over at NASOIC, my understanding now is I can get rid of these air pumps and use block off plates on the cylinder heads.
They only warm up the cat on a cold start then shut the valves after >90secs.
Found that Cosworth also sell these. Not sure if similar product is avail in Aus?
http://www.cosworthusa.com/store/pc/...&idproduct=365
From what I can tell; the 06 WRX has 2 pumps(drivers side and pass side). Not sure which one is bust but can remove both of them, the valves and related hoses and use block off plates on the cylinder heads; then all CEL codes deleted with a tune.
Guess it would be convenient to get that
TBE fitted and car tuned and have this done at the same time.
Has anyone done this before; or know if the tuners in Perth have done this?
I'm getting a rumble at idle and louder rumble approx for 90secs when I cold start, which might be exhaust feedback? Not sure if this means the valve is stuck open which would cause damage with the daily driving at present.?