Runnin rough again

[Ron Wainwright]

   Hello list,

 I posted to the list a few weeks ago that my 87 5ksq
was running like crap all of a sudden but only when it
rains out or is damp but when it is nice out the car
runs great, 
  well it started to do it again I'll be driving fine
the car is in 5th and going 60 or so and all of a
sudden it slowes down or bogs down(does'nt really
matter what speed I'm going) then when I put more
pressure on the throttle it would run fine all of a
sudden(I keep saing all of a sudden don't I),
 I've had Doyt get back to me and saie that the 02
sensore may need to be replaced, replaced it a little
over 30k ago,(how long does the 02 sensore last for
30k, or 60k)
   and the throttle switch wich allso was replaced
about 35k ago by the dealer replaced with part# 026
133 093D can anbody confirm the correct p# I think it
saies_ Hartman_ on the switch, 
  I allso had a bad connection at the fuel distributor
repaired, and stabalizer applied to the temp switch
and hydrolic pressure regulator, I do alot of drivin
so all this was done back in late 98.
 The car runs rough backfiring, alot of exhaust comes
out the end muffler when car is runnin like crap, and
shakes and stalles but after it stalles it will start
fine just runs, and idles like crap, but while leaving
my friends house went to start car and ran like crap
but after sittin there for a while it ran fine home.
Any aditional help would be great, 
Thanks
Ron 

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