i just recently changed my old beat obd1 ls valve cover for a obd2 valve cover. I didn't do it for any nostalgic or brownie points with the local tuners but for a more clean and better look (for me). Plus my old one had oil all over and the paint was chipping, it was oogley! My question is if anyone seen the obd2 valve covers there is a hole on the top near the intake manifold. Is it safe to leave it open or should i stick a little filter in there? I don't want something to fall in and ruin ma sheet so im trying to take as many precautions as i can. Any suggestions or comments are welcome.

 

That little hole is for the PCV.

 

OK, so knowing that the pcv valve is located elsewhere this shouldn't be a problem with leaving it open correct?

 

Try going with a PCV system from the OBD-2 car. I wouldn't leave the hole open though, just find something to plug it until you can find out how to route the PCV system.

 

i don't know how extensive its going to be to re rote the pcv system so il plug it up in the mean time. Thanks for the help peoples! :driving:

 

I have a b18a1(OBD1) block with a b18b1 Head (OBD2) and on the b18b1 the pvc hose connects to a black box under the manifold. There is a hole on the manifold that the pvc connects to. Atleast thats how my old 94 4dr ls was. I say just plug it up and leave it how it is. You will know if your pvc was bad cause your idle on your car will be going crazy.

 

Gracia papa! mucho gusto ablando con usted!