Nick Mumby

I think I may have tracked down the cause of my rough idle.

Unfortunately I cant seem to find the rest of the hose it attaches to!

any ideas where it should go?

googling the part number (a0021405560) tells me this is part of the 'Shut-Off Valve Air Injection System'

Plutoe

That valve(used on 111.973+) is on top of the compressor housing!!

112233

This is the secondary air injection valve. The hose is for open the valve with vacuum.

Nick Mumby

thanks, I've figured it out now.

but now I have a different hose that I cant identify.
Its not a vacuum hose, but comes off the elbow that connects to the throttle body. Its causing low pressure when the kompressor kick in, so I've tied a knot in it until I can work out where it goes.

Is there anyone who has a 2.3 who can check theirs for me?!

thanks.

Nick Mumby

112233

This hose is going to the same switch for the SAI system.

Nick Mumby

Thanks! I'll check this out as soon as I get home..

Nick Mumby

That was it!

Looks like the last owner had it incorrectly connected .

I've attached the positive pressure hose to the bottom, the vacuum hose and the SAI valve to the top.