rough idle and P1497 code!!

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May 18, 2012 | 01:46 PM

supereek

Thread Starter

1st Gear

Joined: Jun 2008

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rough idle and P1497 code!!

Hi,

My 08 clubman S threw a code this morning. It was P1497 from auto shop code reader. And I have rough idle from time to time. After I searched forum, I think I have cracked cylinder head cover problem. I hear vacuum leak around pcv valve location. But I can not believe this plastic cover just broke down. Everything is consumable part in this mini.

Last edited by supereek; May 18, 2012 at 01:47 PM. Reason: add more stuff

May 19, 2012 | 07:55 AM

bluefox280

6th Gear

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From: Broomfield, CO

Quote:

Originally Posted by supereek

It was P1497 from auto shop code reader.

* MINI DTC P1497 (0x2B64) - Downstream Throttle Air Leak

Quote:

Originally Posted by supereek

After I searched forum, I think I have cracked cylinder head cover problem. I hear vacuum leak around pcv valve location. But I can not believe this plastic cover just broke down.

It's becoming more prevalent due to the possible internal PCV valve being blocked / clogged in the valve cover.
The pressures overload the seals and integrity of the cover and create leaks.

Valve covers are cheap and easy to replace.

- Erik

May 25, 2012 | 06:19 PM

supereek

Thread Starter

1st Gear

Joined: Jun 2008

Posts: 38

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Hi,

Valve cover has been changed today.
I attached the cracked pcv image. I see lots of oil dust around top. Hissing /vacuum leak sound is gone now.

Attached Thumbnails

rough idle and P1497 code!!-cracked-pcv.jpg

rough idle and P1497 code!!-oil-dust.jpg

Jan 11, 2014 | 05:35 PM

BCoSiestaKey

Neutral

Joined: Jan 2014

Posts: 5

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Quote:

Originally Posted by supereek

Hi,

Valve cover has been changed today.
I attached the cracked pcv image. I see lots of oil dust around top. Hissing /vacuum leak sound is gone now.

I recently purchased an R56 and after cleaning the MAF and clearing other codes I have this code and the leaking sound from the same area. Thanks for the info provided!

Jan 11, 2014 | 05:43 PM

BCoSiestaKey

Neutral

Joined: Jan 2014

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I have the same code, hissing in the same area. Any way to check if it is the valve cover or perhaps another part? Or is that the main culprit?

Jan 13, 2014 | 08:07 AM

countryboyshane

6th Gear

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Joined: Feb 2009

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From: Bloomfield, MI

Valve cover cheap for the MINI?!

Jan 13, 2014 | 08:41 AM

InjectedGT

5th Gear

Joined: Jan 2013

Posts: 781

Likes: 3

From: Omaha, NE

Quote:

Originally Posted by bluefox280

Valve covers are cheap

- Erik

hahaha. You haven't priced one out for these things have you? It's not JUST a valve cover. It's a $300 PCV system integrated valve cover.

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Jul 14, 2014 | 08:28 PM

cooperjunkie

3rd Gear

Joined: Mar 2011

Posts: 244

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From: Georgetown, KY

My friends 08 MCS is making the exact same hissing sound from the back left corner. Is the fix to replace the valve cover? What is under the upper cover of the valve cover? Does that part come off?

Jul 22, 2014 | 09:23 PM

bluefox280

6th Gear

iTrader: (5)

Joined: Nov 2009

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From: Broomfield, CO

Quote:

Originally Posted by InjectedGT

You haven't priced one out for these things have you? It's not JUST a valve cover. It's a $300 PCV system integrated valve cover.

Sure I have; I've replaced one myself on a clients vehicle.
If you fretting over a part that's only some 1%-2% of the total vehicle cost, you're owning the wrong vehicle.

- Erik

Jul 24, 2014 | 08:13 AM

#10

nkfry

Vendor - Detroit Tuned 15 Years

Joined: Jul 2014

Posts: 1,859

Likes: 34

From: Clawson, MI

Quote:

Originally Posted by cooperjunkie

My friends 08 MCS is making the exact same hissing sound from the back left corner. Is the fix to replace the valve cover? What is under the upper cover of the valve cover? Does that part come off?

The hissing can either be the PCV (which is that black cover looking portion of the valve cover, which does not come off), or the PCV hose which runs from the intake to the PCV. You need to diagnose which of the two it is, but chances are it is the PCV, in which case, yes the fix is buy a new valve cover.

http://www.detroittuned.com/mini-coo...4-valve-cover/

Nick
Detroit Tuned

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