Barely-running '89 90q

[Richard J Lebens]

Another long shot.   Did you pull the distributor cap.  On my 20V when
the breather tube colapsed the distributor filled with oil.


--- "DePenning, Charles [EPM/MTN]"
<Charles.DePenning at EmersonProcess.com> wrote:
> Well this has really turned into a stumper.  Some of you may recall
> the
> problem I'm having with my 221k mile '89 90q- in short, it runs like
> it is
> missing on at least one if not two cylinders.  Starts like crap, runs
> like
> crap when warmed up. This behavior started suddenly at highway speed,
> with
> no indication of this before.  No power, and the exhaust smells
> pretty rich.
> Here's what I have done:
> Checked spark- OK
> Checked compression- OK
> Checked TDC on cam compared to flywheel- OK
> Checked fuel system pressure(s)- OK
> Checked fuel pump delivery rate- OK
> Checked O2 sensor operation-at least attempts closed-loop
> Checked cat- not plugged, but I hollowed it out anyway
> Checked for vac leak- as well as I could, hoses look ok
> Pulled Codes- 4444
> Pulled out and tested injectors- thought I had it here.  All five
> really had
> a bad spray pattern.  Like little needles.  So I ordered up five new
> injectors from Blau, put 'em in (and cleaned up a lot of crap under
> the IM,
> gave the IM a nice coat of paint, valve cover gasket, painted that
> too...sure is pretty now).  Spray pattern looks great now, so I
> installed
> them with confidence that this would solve all of my problems.  But
> noooo.
> Still runs the same, maybe a little worse.  Argh!  I'm getting thin
> on ideas
> now.  Would a big vac leak cause this behavior?  I am just baffled by
> the
> fact that it ran great for a good long while and then suddenly
> crapped out.
> 
> Please help me keep my sanity!
> 
> Thanks in advance-
> 
> Charles DePenning
> '89 90q
> '84 4kq
> '83 5kT
> _______________________________________________
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> quattro at audifans.com
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