apparent lean running issue?

[Al Streicher]

When I pulled my injectors w/insert, the inserts came right out. They were
not crumbling, but that might be different with your engine setup. The
problem I had was the injectors would not come out of the inserts, so I used
a cut-off disk on my Dremel, working lengthwise, slowly working deeper. I
then inserted a flat blade screwdriver and popped them open.
The hardest seal to get back on was the fat green donut. I had to remove the
small seal at the tip of my injector, to keep from damaging it. Then I used
a new insert to force the fat green seal over the end and up the shaft.
A dental pick does come in handy, also.

Best o' luck.

Al

-----Original Message-----
From: quattro-bounces at audifans.com
[mailto:quattro-bounces at audifans.com]On Behalf Of Dave Yentema
Sent: Tuesday, November 11, 2008 6:35 AM
To: LL - NY
Cc: quattro at audifans.com
Subject: Re: apparent lean running issue?


Wow, you read my mind.... I do notice the smell of gas every now and then
and i'll be dammed if i've been able to trace it....
  ----- Original Message -----
  From: LL - NY
  To: Al Streicher
  Cc: Dave Yentema ;
  Sent: Tuesday, November 11, 2008 8:40 AM
  Subject: Re: apparent lean running issue?


  If your injector seals are going bad, and you park in a garage, you will
notice the smell of gasoline when you approach the car. BTDT, went away when
I replaced the seals (actually, with the milage on the injectors at the
time, I just replaced the injectors). Just a bit of diagnosis help.

  LL - NY


  On 11/11/08, Al Streicher <streichea001 at hawaii.rr.com> wrote:
    It could be the injector seals and insert. I replaced the inserts and
seals
    not long ago and it really improved my mileage and idle. The job was
pretty
    easy. I had to cut(Dremel)the plastic inserts lengthwise to get them
away
    from the injector. Other than that, it went well.

    Al
    '90 80


    -----Original Message-----
    From: quattro-bounces at audifans.com
    [mailto:quattro-bounces at audifans.com]On Behalf Of Dave Yentema
    Sent: Monday, November 10, 2008 2:33 PM
    To: quattro at audifans.com
    Subject: apparent lean running issue?


    OK well, I've got every vacuum leak that I know of taken care of, just
put a
    new VC gasket on, replaced 90% of my vac lines (the rest I know are
fine),
    put a new o-ring on my oil dipstick, new oil filler cap, silicone
breather
    hoses from 034, etc. I wish I had a WB 02, but my narrowband shows a
    definate trend of running lean. At idle sometimes it'l wobble back and
forth
    around stoich, going slightly(like one "bar") rich which is the way I
had
    originally set it. But most of the time it bounces slightly lean to high
    stoich, sometimes rich, and the idle surges as it changed. When I first
hit
    the gas to accelarate, it'll snap down so lean its not on the gauge and
then
    come back up, bouncing from like 3 bars of lean to 1 bar of rich, while
    spending more time in lean. Under full throttle it'll go rich like it
    should, but the second I let off the slightest bit it'll start bouncing
lean
    again even under boost!!!. on decel(letting my foot off completely from
    doing like 50) the exhaust pops irradically, and the gauge is all over
the
    place but likes to hang out in the rich area( my car's an autobox, so no
    decel valve) I felt it miss twice the other day under mild accelaration.
I
    was thinking perhaps it was my injectors/seals because for a while I had
a
    leaky VC gasket, so maybe the seals got soaked with oil and got
destroyed.
    Any suggestions are awesome

    Oh yea, its a 87 5ktcs

    TIA
    -Dave

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