2017 R -- restricted performance and pending P2187

Reply Subscribe

Thread Tools

Search this Thread

Apr 18, 2026 | 12:22 PM

#41

scm

Veteran Member

Joined: Jan 2010

Posts: 4,829

Likes: 1,791

From: Southampton, UK

Quote:

Originally Posted by lizzardo

There's a triangle icon with an exclamation point at the right of the header for the post. Use that to report the post.

I've just done it.

Apr 18, 2026 | 12:35 PM

#42

lizzardo

Veteran Member

Joined: May 2015

Posts: 3,956

Likes: 1,307

From: Northern California

Quote:

Originally Posted by scm

I've just done it.

I did just before my reply. I appreciate that this is a useful an predominantly congenial forum, and want to keep it that way.

Apr 18, 2026 | 02:34 PM

#43

POLHUSARIA

Member

Joined: Apr 2026

Posts: 32

Likes: 6

From: United States

Thanks lizzardo

Quote:

Originally Posted by lizzardo

There's a triangle icon with an exclamation point at the right of the header for the post. Use that to report the post. The moderators will take it down. They're usually pretty quick about it.

Also, please do not quote the actual spam, as that can persist after the original is taken down.

Thank you for the information.
Cheers

Last edited by POLHUSARIA; Apr 18, 2026 at 02:35 PM.

Apr 18, 2026 | 04:48 PM

#44

lizzardo

Veteran Member

Joined: May 2015

Posts: 3,956

Likes: 1,307

From: Northern California

Quote:

Originally Posted by POLHUSARIA

Thank you for the information.
Cheers

No worries. All fixed by the diligent admins. Sit back and enjoy. There's a lot of useful information here.

Apr 19, 2026 | 07:53 AM

#45

GerbilEngineer

Thread Starter

Senior Member

Joined: Nov 2025

Posts: 204

Likes: 228

From: Frisco, TX

Quote:

Originally Posted by clubairth1

GerbilEngineer thanks for looking and now what goes where? Long spring or short in the front PCV cap? What you found is what I read after I did my PCV stuff. I just swapped them as both of my springs appeared to be the same. But I installed RKX aftermarket ones because I wanted the better diaphragm material.
Nothing wrong I guess as it's been 3K miles with no problems or codes.
.
.
.

On mine, the short spring was the front and the long was the rear. I ordered two of the Britpart kits (BRITPART LR133579) from FCPEuro. Each one came with both springs.

Apr 20, 2026 | 08:33 AM

#46

clubairth1

Veteran Member

Joined: May 2009

Posts: 12,134

Likes: 3,383

From: home

Thanks much as that was the missing bit of info!
I will add it to my notes.
.
.
.

Yesterday | 03:36 PM

#47

GerbilEngineer

Thread Starter

Senior Member

Joined: Nov 2025

Posts: 204

Likes: 228

From: Frisco, TX

So I ordered a new pair of diaphragms and caps and the came in this week. I figured this weekend would be a reasonable time to swap them. Before I did, I thought it might be good to see if I could readily determine which of the two (or both) might be leaking, so I pulled the can of starter fluid out and set to work. ...and no amount of spray on or around the caps results in a change in fuel trims. I did reconfirm that the leak is coming from the PCV assembly somewhere as disconnecting and capping the hose, that runs back to the throttle body returns the trims to normal.

So now I'm puzzled. My only guess right now is that the diaphragms aren't closing and the intake is just directly connected to the crankcase and so its just sucking in compression stroke blow by, but I wouldn't expect it to be that significant. Not that I have any knowledge to back up that feeling. I may have to do some tests. I can seal of the PCV throttle body connection and see how big a hole is needed to get the same same behavior.

I really don't care to fight off the caps only to end up not fixing things.