Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 07-07-2012, 07:38 AM   #1
Registered User
 
Join Date: Oct 2008
Location: Waco, Texas
Posts: 378
Stumbling issues on startup...have Durametric...where to start

For a long time now I have had an issue with my car ('00 2.7) upon startup when cold. It starts fine but after about 15-20 seconds of idling the rpms drop and it comes close to stalling but the computer catches it and it idles fine from there on out. It does this only one time when warming up from cold. I just got a durametric and was wondering what systems to test and check to hopefully find this issue. I took the car to an independent a long time ago and they did a smoke test to check for intake leaks and supposedly did not find any. My experience with this service place was not the best but they said they did the work and could not find any leaks but they suspected the AFM was bad. I bought a new AFM myself and installed it shortly afterwards and it seemed to make the car run better. When depressing the clutch once the car is warmed up, the engine note audibly changes like something is switching on/off or switching over. It is most noticeable when the car is cold and rarely I will hear a faint sound of a backfire/pop through the intake side. The AOS has been changed as well as the AFM, and the injection pump seems to run just fine as well if that rules out anything. There is plenty of vacuum on the oil filler cap as well. I have read the clutch and brakes share a reservoir so was wondering whether there could be an air leak or something that is tied to that. There is no leaking of fluid from the reservoir or any of the brake lines, etc.

papasmurf is offline   Reply With Quote
Old 07-07-2012, 08:34 AM   #2
Registered User
 
Joel-Box-ster's Avatar
 
Join Date: Apr 2012
Location: Nor.Cal
Posts: 131
Try cleaning the throttle body with spray cleaner it might do the trick.. it probably a relay thats been clicking off and on.
__________________
2K Boxster White/Grey Int./Hardtop/TIP
Joel-Box-ster is offline   Reply With Quote
Old 07-08-2012, 08:22 AM   #3
Certified Boxster Addict
 
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,616
Check the idle valve.

__________________
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
thstone is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 02:49 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page