'87 R10 suburban 350 V8 TBI stalls at lights - suggestions?

[skizzik]

Replaced the coolant temperature sensor today, no change. Still stalling.

Spent some time trying to reconnect the socket for the Check Engine light by trying to reach it from under the dash but couldn't seem to get the socket back in. I just gotta turn the socket and it'll lock into place with the contacts touching the contacts behind it, right? Tried to take the rest of the dash off to get behind the speedometer but reached a roadblock there too. Don't wanna take too much apart since this is my DD.

Smier, I think you're right. I was so hopeful about the coolant temp sensor, but since that didn't work I'm officially hesitant to keep blindly replacing parts.