RE: wastegate diagnosis: MityVac

[quk@isham-research.demon.co.uk (Phil Payne)]

In message <3.0.1.32.19990702120541.00ae1690@pop3.thevine.net> "frank j. bauer" writes:

> try http://mityvac.com
> i got my (metal bodied) silverline kit discounted at harbor freight tools.

Yup.  You can't effectively debug a turbo car quickly without one.

First two uses:

a) Hose from inlet manifold to ECU - can the ECU really see what's going
   on?

b) Wastegate upper chamber - is the diaphragm intact?

After that, there are a myriad uses.  My first diagnosis of a turbo car
involves a run (once I've checked a few things) with a boost gauge.  The
MityVac goes straight onto the ECU line when it comes off the manifold,
and the boost gauge is then teed in there.  On-board boost gauges are
uniformly useless.

--
 Phil Payne
 UK Audi quattro Owners Club
 Phone: 0385 302803   Fax: 0870 0883933