Figured I haven't posted in a while, so we'll give this a small update.
It's getting sunny, so I've been wanting to drive the car lately but it hasn't been starting the last time after I drove it way back in January.The story to that, I started the car early that morning and it idled at 800 rpms right off the bat, no cold start revving, which I thought was strange and it had been doing it as of recent. I was thinking I might have had a boost leak somewhere. Anyways, so I go about my way to work with the car hesitating slightly, but I made it with mostly no issues. After my 8 hour shift, I start the car and it's idle was erratic, hesitating and barely keeping itself alive. I thought, hmmm, my bov might be leaking (I had that problem with an old hks bov). Well, I make my way home (not far) and the car is really acting up, so I pull over and it dies on me. I start it back up and cover my hand over the bov exit, but it doesn't change the idle. The car dies after a bit of idling. I start it back up and feather the throttle the remainder of the way home as it sputters and generally unhappy, I try to hit boost at one point to see if there is a boost leak and my gauge shows that I was building boost fine.
I park the car and go to start it the next day, only to have it come alive for a split second before shutting down. I do this maybe once more before it wont start again (probably flooded at that point). I fix a problematic coupler and notice my plug to the round long cylinder
(not my picture, my valve cover is nicer :>) was unplugged, so I plug that back in as well, then go to fire up the car, but no cigar. The battery sounds weak from having tried to start it, even with my battery charger plugged onto it, the battery had died too many times in it's lifetime that it wasn't retaining a charge. I decided I didn't want to deal with the s*** battery problem anymore so I bought a new Odyssey P925.
I am very impressed with the battery, as you get to choose your own terminals and the whole battery comes in a very compact size. But it didn't help my no start issue of course, so I decided to pull apart the whole AAC/IACV piece to see if there was any blockage inside. The actuator seems to be in good shape and nothing seems wrong inside, so it could be the brown cylinder that maybe isn't working if there were a problem with anything in that piece. I also checked my spark plugs, which looked pretty rich and had a fuel smell to them, but weren't wet.
I am not inclined to think it's the coolant temp sensor, since my Power FC is getting a reading out of it, but maybe I'm wrong and the ecu can still get a read, but it still could prevent the famous rough start/no start symptoms I'm having. I'll probably just buy a new temp sensor since they're so cheap, but I'm willing to bet the problem lies in the cold start sensor, which is the black box thing on the far left of this picture. So now I'm on the hunt for one of those things.