Barely-running '89 90q

[SuffolkD at aol.com]

Charles if its like the 87 4KQ it could be FuelPressureReg next to the CIS 
fuel distributor or a majorly plugged Fuel filter................VAc leak 
tooo.............

HTH - Scott by BOSTON

> 
> 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.  <SNIP> 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-
> 
>