CtrlAlt

Hey all, I need some major help here and I would be very appreciative of anyones suggestions or ideas.
So here's how it goes.. The other night my friends and I were all hanging out working and washing our cars and we all got hungry and wanted to go out and eat.
So we all pack into a couple cars and I get in my car. I turn on my S and the CEL light comes on and starts flashing and immediately I feel bogging..
I turned off the car as soon as I saw and felt it and ran and got my CEL code reader.
I plugged it up to my car and ran the reader and it came back with 2 codes, 1 fault code, and 1 pend code.
The codes were:
P1399 - DTC not found (It's a honda, duh.)
P0304 - Misfire in cylinder #4!


So I decided to do a compression test and see what the f@#k is up and it came back with:
Cylinder 1: 210 compression
Cylinder 2: 242 compression
Cylinder 3: 240 compression
Cylinder 4: 0 compression

WTF IS THAT!?!?!?!?
Is it a bent valve, a broken retainer, I don't know.
If any of ya'll have some experience or advice with this I would love to hear all about it.

My car is a MY2000 and I am the third owner. My friends were saying that it could be from a mis-shift or over-rev from one of the idiots who owned the car before me.
I know that AP1 retainers have problems with cracking and are weak but I thought there would have been some sign of wear or damage without having to do a valve adjustment to figure it out.
I am a college student and I don't have that much money to fix it so I was hoping someone could point me in some direction as of what I need to have to fix it and if anyone else has had a problem like this.
I have read all the posts I could about this and IMO have not really came to a definite conclusion on what I should do and I don't trust dealerships because they always try to rip me off and tell me I don't know what I'm talking about.
Any help would be greatly appreciated. Sorry for the long post guys.

Thanks,
Nate

mmm...vtec

How did the plugs smell and what did they look like?

CtrlAlt

I had just replaced the plugs and the ones i took out were pretty nasty.

CtrlAlt

I purchased new ones immediately after the compression test.

speakeasy2009

How long have you had the car? I ask because if you have had the car a while an issue like this should have shown up on a test drive , i assume.

CtrlAlt

Well from what I have been reading, there are no real signs of it unless you do a compression test or valve adjustment.
My S has been running great w/o any problems all the way up until now..

mmm...vtec

The top 2 look extrmely carbon fouled! Did they smell like gas or burnt oil? How many miles on those plugs?

CtrlAlt

I can't exactly remember the smell but it did smell of some sort of fumes. :/

mmm...vtec

Well if u can pull them out and take a whiff it will help to diagnosis.

CtrlAlt

I think it smelled more of gas than anything.
My car isn't leaking oil or anything atm but I have not really turned it on since it threw that CEL at me.