Carrera 2 2000; replacement of idle purge valve

[Philip54]

I purchased a new idle purge valve, the one located just above the alternator, p/n 996 110 129 53, and I plan on installing it this coming week-end.

Could somebody advise how to release the electrical connector? Usually there is a little tab to press to unlock the connector, but I could not see any tab.

Thanks

[Loren]

Most Porsche connectors have a clip or buttons you need to press to release.

[Ahsai]

It's the standard Bosh injector type connector where there's a metal clip you just squeeze FULLY to unlock then pull to disconnect. The metal clip is behind so you can't see it. Have to go by feel.

http://www.bmotorsports.com/shop/product_info.php/products_id/944

Edited February 27, 2014 by Ahsai

[creekman]

This is a sore subject for me. When I removed my engine recently getting the plugs undone without damaging the plastic clips was the hardest part of the operation. Each plug seemed to have a different release, and like Ahsai says, the releases are hidden about half the time so you better be into "braille". Porsche didn't make it easy... Sorry, I had to get that off my chest...

[Philip54]

Thanks to all!

[Y2K911]

Philip: What were the symptoms that drove you to replace that idle purge valve? Was your idle wild up and down from around 800 rpm?

Curious as I have the same car/yr type!

Thanks!

Martin

[Philip54]

Martin,

The symptoms are: tapping noise coming from the valve and idle RPM oscillating (+/-) 50-75 rpm. Both occur when the engine is warm. Two or three times it looked like the engine was going to quit, but eventually it didn't. Right now I also have the engine light on (Error P410). I have not yet replaced the idle purge valve, so I don't know if the problem is cause by this valve. I can post a message after Ido it.

[Gary S K Lee]

i have the similar problem here...mine has good stable idle around 850rpm but once the engine is all warmed up it stalls at stops for no reason. I have already replaced the MAF sensor and the egas throttle body but still no luck. Im really pissed since i replaced these parts for nothing!

[Philip54]

I have replaced the idle purge valve. The engine light is off (error was P0410) and the tapping noise is gone. The idle is still irregular, perhaps a tad better.

[Loren]

Have you cleaned the throttle body well - both in front and behind the butterfly?

[Y2K911]

Thank you Philip for the reply & update!

Is idle purge valve also referred to as idle control valve for 00 C2s?

Martin

[Philip54]

Thank you Philip for the reply & update!

Is idle purge valve also referred to as idle control valve for 00 C2s?

Martin

Martin,

My understanding is that the 00 C2s, equipped with electronic throttle, do not have idle control valves.

The idle purge valve is another valve. It is located above alternator. Do a search for part 996 110 129 53 on the Pelican Parts website to see a picture of this valve.

[Philip54]

Have you cleaned the throttle body well - both in front and behind the butterfly?

I have cleaned the throttle body well in front of the butterfly. In the back of the butterfly I did what I could. I believe that to clean it real well behind the butterfly it necessary to remove the throttle body from the engine. Is there a procedure on this forum on how to do it?

Thanks

[Ahsai]

This one looks good, except I would use throttle body cleaner

http://911car.blogspot.com/2009/07/porsche-carrera-throttle-body-cleaning.html

[Philip54]

This one looks good, except I would use throttle body cleaner

http://911car.blogspot.com/2009/07/porsche-carrera-throttle-body-cleaning.html

Thanks

[Y2K911]

Thanks again Philip! Search is my friend as HE says!

[Philip54]

Have you cleaned the throttle body well - both in front and behind the butterfly?

After some additional cleaning of the throttle body behind the butterfly, in the areas that are difficult to reach, the idle is now fairly stable.

Thanks, Loren.

[Loren]

:thumbup:

[01slvr996]

Had similar issue last summer in my 2001, took the TB apart and cleaned the whole thing. It's amazing to me how much gunk can get inside and affect the performance of airflow in the TB. I now do it every time i change my air filter.