GIAC to COBB // Narrowband or wideband o2? - Rennlist - Porsche Discussion Forums

Go Back  Rennlist - Porsche Discussion Forums > Turbo Technical Discussion Areas > 991 Turbo
Reload this Page >

GIAC to COBB // Narrowband or wideband o2?

991 Turbo Turbo and Turbo S

GIAC to COBB // Narrowband or wideband o2?

Old 11-18-2018, 12:14 PM
Thread Starter
aft86's Avatar
Join Date: Jun 2018
Location: New York
Posts: 59
Default GIAC to COBB // Narrowband or wideband o2?

Has anyone had any experience with going from GIAC to COBB? Will I have to send my ecu to giac to have them return it to stock so that cobb can be loaded in?

Also, does anyone know for sure if the downstream o2 sensors on the 991 are narrowband or wideband?
I've searched and found the answer for older models but not specific for the 991.
aft86 is online now  
Old 11-18-2018, 10:18 PM
Rennlist Member
Join Date: Oct 2016
Posts: 30

The 991 is closed loop controlled at WOT and therefore has widebands from the factory.
Adianaty is offline  

Thread Tools
Search this Thread

Contact Us About Us Advertising Cookie Policy Privacy Statement Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: