Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical chat

Reply
 
LinkBack Thread Tools Display Modes
Old 10-30-2017, 03:51 AM   #1
Registered User
 
Join Date: Jul 2017
Location: Cape Town
Posts: 6
2000 S stumble at 4000rpm

I have a 2000 3.2S model. It's RHD UK model with around 70k miles. The UK model comes without primary cats. I have recently removed the secondary cats for a bit more sound. They were in decent condition. The car now resides in Cape Town, South Africa

The power hits VERY hard at 4k rpm and runs cleanly with no sign of misfire right through the rev range. I'm not actually sure if the transition should be quite so digital.

Last week I was cruising on the highway and eased the speed up in top gear. At 4k RPM on an uphill, she just stopped pulling. No amount of throttle would get it to increase, however a drop to 5th to break the 4k barrier and she took off nicely again. I've since played around revving slowly through 4k in lower gears and found 2 "dead" spots- at around 3850 and 4000. It seems almost like a total fuel or spark cut at those exact points in the tables. if you ease it into the "limit" then you're stuck there but if you hit it a little harder you slingshot through it and you're on your way again.

I've ordered an eBay Chinametric but it's not here yet, so I can't look at data.
Hagu13 is offline   Reply With Quote
Old 10-30-2017, 08:17 PM   #2
Registered User
 
Join Date: May 2014
Location: S.California
Posts: 2,011
The Chinese knock-off Durametric has such old copied software ,you may be disappointed/confused by the readings.
The first thing to check easily and conclusively on Durametric would be the Variocam function.
Or as the King suggests below ,tell us your MAF readings from Durametric.

Last edited by Gelbster; 10-31-2017 at 07:16 PM.
Gelbster is offline   Reply With Quote
Old 10-30-2017, 08:27 PM   #3
Registered User
 
The Radium King's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 2,923
maf probably. disconnect it and see if the problem goes away.

The Radium King 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 05:28 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, 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