Re: 88 5ktq boost or lack thereof

[Sitk@aol.com]

In a message dated 98-02-26 13:42:15 EST, you write:

<< quattro@coimbra.ans.net >>
I'm thinking the lack of boost is on the exhaust side and I'm guessing 
     either the hot side of the turbo or a blockage in the exhaust system 
     (cat?). What would be the best way to proceed to try and isolate the 
     problem?

What is the ambient air temp?
Cold temps will cause your Audi's computer to limit boost. Also you shold only
get boost of 1.3 to 1.4 max, your Audi boost is not true to readings on the
digital read out  your Audi puts out no boost until it reads over 1.0 unlike
Porsches wich show actual boost.

Did you replace the 4 point switch? it is actually a 3 point switch but it
controls your temp guage and if it is failing you temp guage will work
intermitently this can cause boost problems by over correction of fuel output
by the computer.

Also you may want to run a can of BG 44k injector cleaner through your Audi if
that doesn't work you may need to replace your injectors.

If this doesn't work E-mail me and I can give you what you need.