My car, with n18 motor, is experiencing cold start idling issue.
When engine is cold, rpm bounces up and down for couple of minutes and smooth out afterwards.
While search for the fix, I noticed the PCV cover is not seated fully.
Wondering... should the cover closed fully? or should there be a gap?

 

Yea, should snap down. Are you getting a hissing noise? My guess is the clip in side on the valve cover might be damaged.

https://www.ecstuning.com/b-hamburg-...27646552v~ham/

 

Thank you.
Yesterday, while driving, CEL P0171 was triggered.
Open the hood, found that the PCV cap was gone. I guess because it wasn't fully seated, it popped out and flew away..

 

be careful you don't break any tabs when replacing

 

^^ +1 yes check those clips otherwise you will need a new whole cover. Which comes with a New rear corner PCV.

https://www.ecstuning.com/Search/Sit...h/11127646552/

 

Yeah.. ended up replacing whole valve cover.
Luckily was able to find a decent used OEM valve cover for $40 locally. Job done.

 

Glad you found the problem, sorry it was the more expensive of the two.

I just replaced my PCV. I am hoping it lessens my oil consumption. No leaks and about a quart per 1000 miles. It only has 63000 on it. I know I have read that Mini's use oil and I have had turbo vehicles in the past but that seems a bit excessive to me.

 

Checked my oil level today, 500+ miles after doing the oil change and the PCV. I am happy to report it was right at the top of the dipstick.

 

Awesome.
I was too loosing engine oil without obvious leaks. I was thinking it's either PCV or valve stem seal.
Since my PCV is fixed, I'll monitor oil level. Thanks!

 

At 1000 miles now and oil level has barely changed. Very happy I changed the PCV!

 

Has it helped your oil consumption?

I am at 2500 miles now since changing it and still very little change in the oil level. So glad I changed it!

 

Mine is still burning but not as bad as before.
I think the next up is the valve stem seal, which I should do together with timing chain.
Or...
just sell it..? :D

 

Fueled up today and checked the oil. 1st time adding since changing the PCV, 1/2 qt at 2700 miles. that beats the heck out of 1 qt per 1000-1500 miles.