Help with rough idle.

[bigblue87]

I just purchased my self a 1987 chevy 4x4 about a month ago. I Fell in love with it when i first seen it, so i had to pick it up. Everything with the truck is pretty decent considering it was used for the past few years as a daily driver.

So to the point, i'm having some rough idle issues i was hoping you guys could help me figure out. the truck is shakey in neutral and drive at idle speed and even seems like it wants to stall once it warms up to normal temps. I think it smooths out anything over 1500-2000 or at least it seems to.
Here;s a list of things i have checked/replaced.

87 350 w/TBI

- replaced plugs and wires
(Not sure if it was my imagination but when i fired it up after this it seemed to run good until i started it up again the next morning)
- checked the distributor cap
- checked timing
- checked the in injectors spray pattern and ran seafoam through it
- checked for vacuum leaks (hoses and around intake)

After that i figured it might be a sensor so i fixed the SES light and came up a few codes (44(02 sensor), 32,and 34)

So i have replaced so far

- o2 sensor
- Throttle positioning sensor
- temp sensor
- IAC

Found out that the egr wasnt even hooked up to the TB... didnt think i even needed it but figured id hook it up any way. It ran even worse than before so i ended up just replacing the egr as well.


I think thats about it. If any one has any words of wisdom id love to here them.
Thanks!