New Headers for my '04 S - 986 Forum - The Community for Porsche Boxster & Cayman Owners

A Division of Pelican Parts

986 Boxster Catalog | 987 Cayman Catalog | Accessories | Performance

· Pelican Parts 986 Catalog
· Forums
· Refer Friends !
· Reviews
·General Discussion
·Performance Talk
·Autoshows
·Show and Tell
·Classifieds
·Boxster Clubs
·Porsche Lounge
·Porsche Links
·986forum Shopping
·Jump to C7forum

		986 Forum - The Community for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical Chat
New Headers for my '04 S

Garage

Prev

Previous Post

Next Post

Next

05-29-2008, 02:12 PM	#26
Stroked & Blown Registered User Join Date: Jul 2005 Location: MA Posts: 884	Is the CEL issue due to the fore (header/manifold) O2 sensor or aft? The fore 02 controls closed loop fuel trims, the aft sensor tracks catalytic efficiency and has no bearing on fuel trims. If you remove the cat between the two O2 sensors, you can use the non-foulers on the aft sensor without a problem. Is Porsche using the fore O2 for fuel trims AND precat efficiency? If so, is this the case for all model years, or just 00-04? __________________ 98 Arena Red 986

« Previous Thread | Next Thread »

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 Forum Rules

All times are GMT -8. The time now is 12:07 AM.