Fuel Management
#1
Junior Member
Thread Starter
Join Date: Aug 2011
Location: California
Posts: 27
Likes: 0
Received 0 Likes
on
0 Posts
Fuel Management
Hi i need to install a wideband AFR into my car and i need to know if i need to drill a hole and weld a new fitting or if it could just replace my current O2 sensor? i wouldnt like my car to be stuck in closed loop... haha. i have an 87 S4. help would be appreciated
#2
Engine, Not Motor
iTrader: (1)
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 108 Likes
on
91 Posts
Your best bet is to weld in a new bung. The stock O2 hole is pretty close to the exhaust ports, which tends to overheat sensors. Weld in a new bung about 2 feet from the manifold/turbo and the wideband will be much happier, and you can still run the stock O2 for closed loop.
#3
Rotorhead
Join Date: Feb 2001
Location: Charlottesville, Virginia, USA
Posts: 9,136
Likes: 0
Received 39 Likes
on
33 Posts
Also, install the O2 sensor bung at the top of the pipe between the 9:00 and 3:00 position to keep it away from condensation that collects in the bottom of the pipe. You can fabricate a heat sink to keep heat away from the sensor. Here is a diagram from http://www.innovatemotorsports.com
Thread
Thread Starter
Forum
Replies
Last Post
rgordon1979
3rd Generation Specific (1993-2002)
40
03-15-22 12:04 PM