Checked throttle shaft, wiggles back and fourth a lot. Explains high idle, and why it will not idle down. I am going to get the hitachi intake and the weber 32/36 as soon as I can.

 

Still don't know why ECS light comes on, but I am sure I will figure it out soon.

 

Thanks to everyone for replying to my other post about this problem, I really appreciate it.

yeah, my S-10 is like that, and i'm just resigned to it, because I'm too cheap to buy another carburetor.

Well - just a tip for you when you get the weber - just pull the whole ECU out completely - this will extenquish the light forever. And you don't need the ECU with the weber.

 

GD