the pcv valve is pain in the a$$ its located on the upper side of the oil filter.i tried to change it one month ago i couldnt do it that $ucked man.anyhow Bonne chance

 

the pcv valve on that car is rite on top of the intake manifold, in front of the throttle body. you can't miss it. there's a S shaped hose over it that leads down to the block. you'll need a 14mm wrench or deep socket to remove it. they say that if u shake and it rattles, it's working. i don't really believe that and for the sake of 4 bucks you're better off changing it. but like i said if you're not burning any oil and there's no blowby coming out of yer valve cover, then i'd say yer pcv valve is working and your engine is fine, u jus got a firing problem.

 

If it was running ok before you changed the plugs
you have two sparkplug wires crossed check the firing order

 

Hi guys, I just took it to a goodyear tire that i worked at so i trust the guys. My number one cylinder has no compression. They said it would cost 860 to pull the head off and see if it's a hole in the clyinder or a valve problem. I don't have $1000 bucks to put into a 15 year old car. The spark plugs have oil on the top and bottom. It's basically trashed. So if anyone needs parts of a 90 civic lx let me know.

Thanks

 

what would you want for the whole car im up for another tuner project i still have my old singel came v motor i could put in it and got any pics

 

or if you want to fix it i got my old 1.5 motor when i did the first swap it is a stong motor