Sensor on drivers side exhaust??
Thread Starter
Racer
Joined: Jul 2006
Posts: 337
Likes: 10
Sensor on drivers side exhaust??
OK....my 81 is all non emission, but I just found a two wire sensor on the exhaust system, driver side, just below the header connection, tip of sensor facing mostly rearward. Can someone comment on what type of sensor this is. I would assume I can remove at this point.
Thanks all.
Thanks all.
Safety Car
Joined: Dec 2004
Posts: 4,071
Likes: 0
From: San Diego CA
Originally Posted by sjmaster
Thats what I thought....thanks. Odd they would want to just sense 1/2 the engine.....but if true dual system....guess it's that, or use and take the average of two sensors.
Race Director
Joined: Jul 2004
Posts: 12,705
Likes: 329
From: Scottsdale Arizona
Originally Posted by Kalway
The computer was too primitive to know what to do with 2 sensors, basically. Plus, theoretically, it should read the same on both sides.
Safety Car
Joined: Dec 2004
Posts: 4,071
Likes: 0
From: San Diego CA
Originally Posted by CA-Legal-Vette
Right on both counts. It's much harder to set algorithms to deal with differences in two sensor readings. The computer version of my favorite sying: "Never ask a question that you can't accept the answer of."
Race Director
Joined: Jul 2004
Posts: 12,705
Likes: 329
From: Scottsdale Arizona
Originally Posted by Kalway
Well a more advanced computer could use two O2 sensors. It could adjust each side of the carburetor based on the readings of that side. If one side were to send a lean signal it could richen it up and so forth. Would be a rather waste of programming effort, though.
Safety Car
Joined: Dec 2004
Posts: 4,071
Likes: 0
From: San Diego CA
Originally Posted by CA-Legal-Vette
You're right. An even bigger waste when you consider the barrels of the carb share an open space below the butterflys.
Heh well imagine having a fuel injection system with 8 O2 sensors that read each cylinder and each changing the mixture of each cylinder depending on need.
Wiring harness headache!Glad I'm still using a carburetor.
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Safety Car
Joined: May 2001
Posts: 3,758
Likes: 3
From: Surrey
Originally Posted by CA-Legal-Vette
You're right. An even bigger waste when you consider the barrels of the carb share an open space below the butterflys.
I don't think the computer would have a problem monitoring 2 O2 sensors (you wouldn't believe what we managed to get even more primitive processors to do 25 years back!). It only reads the sensors every 100msecs so there's plenty of time to process & act on the info recieved. But who cares? As long as mine keeps doing its thing then I'm happy (if it fails then the cost of another carb & dist will take a huge chunk out of my cylinder head fund ).