'95 90Q - besides injectors, ISV, or vaccum leaks......what else could be causing my lean fuel mix?

[Andrew Lundy]

Bad O2 sensor maybe??  Although with this I suppose you would get the O2
sensor DTC.....just a thought.

Normally, you measure oil consumption on a qt/mileage basis (not on a
qt/time).  My '95 uses  ~1qt/1200 miles, which is right around what "most"
of them consume at.

HTH!!
---
Andrew Lundy
fast928 at prodigy.net
90 80q
91 90
95 90q



----- Original Message -----
From: "Joel Lenorovitz" <jlenorovitz at yahoo.com>
To: <quattro at audifans.com>
Sent: Thursday, February 22, 2001 5:07 PM
Subject: '95 90Q - besides injectors, ISV, or vaccum leaks......what else
could be causing my lean fuel mix?


>
> '95 90Q with recurring check engine light due to lean fuel mixture in
banks 1 and 2
>
> I've had the injectors replaced under the recall, cleaned the ISV (which
seemed to
> cure my intermittent idle drop problem), and examined all I can see for
vaccum
> leaks.  Interestingly, even if I intentionally create a huge vaccum leak I
cannot
> reproduce the condition that sets off the light.  What else could be
causing this?
> What else can I check?
>
> Also, how much oil does the V6 12v typically consume?  I don't see any
evidence of
> leaking, but the level sure goes down rapidly - perhaps 1/2 to 1 quart per
month.
>
> Thanks for the advice,
>
> Joel
>
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