New issue with my Blazer popped up a couple days ago and I'm trying to figure out where to start.

So the engine runs fine while I'm driving but it boggs down and sometimes will stall as soon as I come to a complete stop. Somewhat of a rough idle along with it. I did plugs/wires/cap/rotor a couple of months ago so I doubt it's related to that.

A couple of strange things is that in the morning or after it has been sitting a while I don't have this issue, it just starts doing it when it warms up a little (O2 sensor maybe?). And also, I've had the car for 70,000 miles the engine light has always been on, the couple of times I've checked it it was just because of the AIR system so I never worried about it, but since this problem started happening the light went off and has stayed off.

Fuel pump was replaced a couple years ago and it isn't really making any noise. Hopefully it isn't related to that again. Just seeing if anyone thinks I should start with checking the fuel or otherwise. Heavy rain in the forecast the next couple days and no garage so I'm going to try to limp it along until it clears up.

Thanks in advance.