Im very worried about my car. The check engine appeared and I dont know what it is. The oil was just changed. could it be because the valve is not connected to the intake pcv? I dont know... but could someone point out the possibilities?

is it your check engine light or mant req light.

I read in my manual once that the check engine light may come on if you dont tighten your gas cap at least 3 clicks... might try there lol

pull the CEL code and then we can help u from there. this is how u pull the codes: http://www.honda-tech.com/zerothread?id=978933

hmmm, im gonna take a guess and say ur O2 sensor is shot. check the code and tell us what it is