blazer idling a little rough

I have a 2002 Blazer that feels like it's going to stall when idle at a stop (light, sign, traffic, etc.). I changed the plugs (even the one blocked by the steering shaft) and wires and it helped a little, but there is still a slight miss. I know the timing is controlled by the computer, so what else can I do?

Check the EGR valve; make sure its not stuck open and is operating properly.

I have a 2002 Blazer that feels like it's going to stall when idle at a stop (light, sign, traffic, etc.). I changed the plugs (even the one blocked by the steering shaft) and wires and it helped a little, but there is still a slight miss. I know the timing is controlled by the computer, so what else can I do?

Cornflake

How many miles on your 02? If you're over 60 you may be due for O2 replacement. Also another item to check is the idle control solanoid.

Do you have a check engine light? Have you checked for codes?

Regards

Dan