ecu location?

Tue Apr 5 14:37:40 PDT 2011

 If I recall, the vacuum keeps the valve closed, opening when heat is asked for. So, yes the valve should hold vacuum, going the other way yes, but only when heat is asked for and the control closes vacuum to the valve. Make sense?  Bob

-----Original Message-----
From: Ed Kellock <ed.kellock at gmail.com>
To: 'Tony Hoffman' <auditony at gmail.com>
Cc: 200q20v <200q20v at audifans.com>
Sent: Tue, Apr 5, 2011 4:29 am
Subject: RE: ecu location?

Thanks Tony.

I found it and did my troubleshooting.  My email posted hours late because

it was held by the spam filter or whatever.  

I'm investigating a hissing sound behind/under the dash toward the passenger

side that I varies in intensity with boost level.

I've tested everything with the Mityvac and the only thing that doesn't hold

a vacuum is the heater valve and whatever it connects to on the other end.

I tested the ecu hose right from the T off the intake manifold.

I tested from that same point to the fuel pressure regulator.

Under the plenum there's the white and black vacuum lines for the climate

control.

The white one appears to only control the heater valve and it would not hold

a vacuum. Should it?

Should it hold a vacuum going the other way, into the CC system?

Thanks!

Ed

-----Original Message-----

From: Tony Hoffman [mailto:auditony at gmail.com] 

Sent: Friday, January 21, 2011 9:29 PM

To: Ed Kellock

Cc: 200q20v at audifans.com

Subject: Re: ecu location?

Right side inside the kick panel. right in front of the door.

Tony

On Fri, Jan 21, 2011 at 4:20 PM, Ed Kellock <ed.kellock at gmail.com> wrote:

Where is the ECU in the 200q20v?

Left side or right side passenger footwell?

Ed

No virus found in this incoming message.

Checked by AVG - www.avg.com

Version: 9.0.872 / Virus Database: 271.1.1/3393 - Release Date: 01/21/11

00:34:00

_______________________________________________

200q20v mailing list	 http://www.audifans.com/mailman/listinfo/200q20v