O2 sensor installation?
Thread Starter
Drifting
Joined: Apr 2002
Posts: 1,720
Likes: 19
From: Manhattan Beach Ca
O2 sensor installation?
I really want to install O2 sensors in my header collectors.
Need to learn what it takes or what's out there so I'll try here first.
Looking for anyone who's done this and what brand or equipment did you use? How do you read out the data?
Need to learn what it takes or what's out there so I'll try here first.
Looking for anyone who's done this and what brand or equipment did you use? How do you read out the data?
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
I put one in my collector and was using the LM1 system. I have since gone to fuel injection and put 2 O2 sensors in the header tubes. I still have the plug in the collector also. It is just a matter of welding in the bung to the headers or tubes
Safety Car
Joined: Aug 2001
Posts: 4,883
Likes: 11
From: North Easton Mass
I'm going to be putting O2 bungs in my exhaust so that the LS1 ECU will self-adjust. From what I've read you don't want to put the bung at the bottom of a pipe. Moisture can collect there and damage the sensor.
Rick B.
Rick B.
Racer
Joined: Jun 2003
Posts: 368
Likes: 1
From: Lititz PA
I did a very simplistic bung/O2 sensor install. I used a good volt meter to "read" my O2 levels at idle, part and WOT. Not super accurate, but satisfying enough.
I would agree to go with an O2 with the extra heat circuit as I believe they are more accurate than the one I used.
For me it was a fun project, I was not using it for any real time engine management.
Summit racing sells the O2 bungs, I have a 110V mig welder, so it was a fun little project.
Andy
I would agree to go with an O2 with the extra heat circuit as I believe they are more accurate than the one I used.
For me it was a fun project, I was not using it for any real time engine management.
Summit racing sells the O2 bungs, I have a 110V mig welder, so it was a fun little project.
Andy
Pro
Joined: Jun 2004
Posts: 543
Likes: 2
From: Miami FL
St. Jude Donor '11, '14
There are two very different types of O2 sensors. Narrow band sensors are cheap, accurate in a very narrow range of values and readable with a volt meter or cheap gauge. They are standard on most cars.
Wide band O2 sensors are much more accurate, cover a much wider range of A/F ratios and require a dedicated gauge or meter to read them. Better EFI systems include a wideband sensor. IMO narrow bands are for entertainment and widebands are for tuning. We use and sell the innovate wideband system.
Rob
Wide band O2 sensors are much more accurate, cover a much wider range of A/F ratios and require a dedicated gauge or meter to read them. Better EFI systems include a wideband sensor. IMO narrow bands are for entertainment and widebands are for tuning. We use and sell the innovate wideband system.
Rob
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
The O2 sensors are there to read the oxygen in the exhasut gases that is it. They tell the computer on a fuel injected motor to lean or richen the fuel when cruising down the road in a closed loop. They are also very handy to set up a carb if you have a good reader like a LM1 system. There are others out there also. My LM1 uses a wide band O2 sensor which is also heated so it is not a critical to have it close to the cylinder head. My fuel injection system uses a narrow band sensor therefore they recomend it be in the header tube fairly close to the cylinder head. Most fuel injection systems run in a pretty narrow band so the unheated narrow band usually is more than enough. They are also less expensive than a wide band heated sensor. In a nutshell they are used to read the oxygen level and send a signal to an ECM or a reader of some type so you know what the lean/rich reading is coming out of the tailpipe.
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