apparent lean running issue?

[LL - NY]

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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