Jump to content

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

erratic idle at startup

usdmej
 Share

Recommended Posts

usdmej Member

usdmej

Posted
Posted

whats up fellows, up until now my 996 has been nothing but reliable. but recently when i start it up in the morning the idle will go up and down until the engine warms up. after that all is fine. is this something that should be expected? ive got no cels or anything like that

Link to comment
Share on other sites
  • Admin
Loren Member

Loren

Posted
  • Admin
Posted
how did u know it was a 99?!? =O
I looked at your profile.

A MY99 C2 is not egas so you have an idle control valve.

Chances are this needs cleaning or the solenoid is bad and it needs replacing.

Either way you should remove it clean it (and the throttle body while you are there).

This process has been documented here many times so please do a search if you need details

Link to comment
Share on other sites
usdmej Member

usdmej

Posted
  • Author
Posted
how did u know it was a 99?!? =O
I looked at your profile.

A MY99 C2 is not egas so you have an idle control valve.

Chances are this needs cleaning or the solenoid is bad and it needs replacing.

Either way you should remove it clean it (and the throttle body while you are there).

This process has been documented here many times so please do a search if you need details

thanks for the tips loren, i found how-tos of the throttle body cleaning but i cant seem to locate insturctions on how to get to the idle control valve. can anyone help me out?

Link to comment
Share on other sites
jamesgood72 Member

jamesgood72

Posted
Posted

I was wondering about that too. I assume you have to take the throttle body off (the four bolts), to get to it. I tried removing the idle control valve 'in position' but couldn't get a good angle on the rear torx screw so aborted since I didn't want to destroy the screw. I think my idle control valve is faulty too.

-James.

thanks for the tips loren, i found how-tos of the throttle body cleaning but i cant seem to locate insturctions on how to get to the idle control valve. can anyone help me out?
Link to comment
Share on other sites
  • Admin
Loren Member

Loren

Posted
  • Admin
Posted
how did u know it was a 99?!? =O
I looked at your profile.

A MY99 C2 is not egas so you have an idle control valve.

Chances are this needs cleaning or the solenoid is bad and it needs replacing.

Either way you should remove it clean it (and the throttle body while you are there).

This process has been documented here many times so please do a search if you need details

thanks for the tips loren, i found how-tos of the throttle body cleaning but i cant seem to locate insturctions on how to get to the idle control valve. can anyone help me out?

There are just two Torx (or allen) screws and an electrical connection on the idle control valve. Be careful of the paper gasket when you take it off - so you can reuse it.

Link to comment
Share on other sites
usdmej Member

usdmej

Posted
  • Author
Posted
Cleaning the IAC valve is very very very easy. Definite DIY and helped my (now deceased) engine's idle immensely.

i'm hoping this wil fix my engine woes, can anyone show me a picture of the IAC valve so i can know what i'm looking for?

Link to comment
Share on other sites
  • Admin
Loren Member

Loren

Posted
  • Admin
Posted
Cleaning the IAC valve is very very very easy. Definite DIY and helped my (now deceased) engine's idle immensely.

i'm hoping this wil fix my engine woes, can anyone show me a picture of the IAC valve so i can know what i'm looking for?

Have you tried our Search?

I searched for ICV and got over 40 results - some with pics, including the following thread.

Idle Air Control Valve - how is it supposed to look?

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.