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

Reply
 
LinkBack Thread Tools Display Modes
Old 04-12-2019, 04:15 PM   #1
Registered User
 
Join Date: Apr 2019
Location: S. California
Posts: 2
new catback exhaust. CEL came on.

I had a custom catback exhaust built for my 99 986. Removed that HUGE exhaust and had a new free flowing catback system custom done. Sounds GREAT. But in less than 3 miles the CEL came on. never touched 02 censors. any ideas?
MGraves is offline   Reply With Quote
Old 04-12-2019, 04:56 PM   #2
Custom User Title Here
 
particlewave's Avatar
 
Join Date: Mar 2012
Location: KC
Posts: 5,586
Garage
You have to tell us what the code is.
particlewave is offline   Reply With Quote
Old 04-12-2019, 07:25 PM   #3
Registered User
 
Join Date: Apr 2019
Location: S. California
Posts: 2
will not know till tomorrow. But the exhaust system is a complete muffler delete on 2 1/2" pipe. So basically no back pressure other than the CATS.
MGraves is offline   Reply With Quote
Old 04-13-2019, 12:00 PM   #4
Registered User
 
Qckslvr's Avatar
 
Join Date: Aug 2010
Location: San Jose, CA
Posts: 111
if you removed the cats completely, you might need mini cats for your down stream O2 sensors.

Something like these https://www.fvd.net/us-en/FVD111LAMSIM/oxygen-sensor-simulator-minicat-sold-individually.html

You don't have to get those exact ones, there are cheaper versions all over ebay and Summit Racing. I myself used the FVD because I ordered thier muffler as well at that time.
Qckslvr 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 06:47 AM.


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