Haystack012

I've got an 05 civic dx with the 1.7l engine.
started with no codes but would randomly stall at low rpm, would start back up with some throttle and proceed to stall again at low rpm. Magicly fixxed itself for awhile but now its back and not going away.
I changed the egr valve, didn't change anything. Eventually I got a code for the IAC valve. Swapped that out and still no change. I cleaned the throttle body, bo change.
finally got a different code for a cylinder 4 misfire, so i swapped out all the plugs, then had a Cy 2 and 4 misfire. Left it sit for the night, drove around the block this morning with no codes but still having the same stalling at low rpm deal.
what's my next move here? Thank you!