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#1 |
Registered User
Join Date: Feb 2009
Location: Fort Mohave, Arizona
Posts: 207
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Rear 02 sensors in headers
This might sound dumb but my 02 sensors are pointing out to the side and going to hit the frame. Can I cut them out and weld them back in from the top or will that affect the way they work?
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My 55 Build 55 C-4 |
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#2 |
Registered User
Join Date: Nov 2001
Location: Springfield, MO
Posts: 2,932
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Re: Rear 02 sensors in headers
You really don't need the rear ones. They would need to be tuned out tho. They are also to be after cats so they won't read correctly if you don't have then placed after the converters. But if they are the front ones yes they can be moved so they don't interfere.
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Dave 1968 Custom Chevy with turbo charged 5.3 gen III 4l80e swap 1967-71 GMC 3/4 ton long step 4x4 (not sure what year exactly?) "A good friend will bail you out of jail...but a true friend will be sitting next to you saying "that was frekin awesome". "If it doesn't fit force it...If it breaks then it needed to be replaced anyway!" |
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#3 |
Registered User
Join Date: Feb 2009
Location: Fort Mohave, Arizona
Posts: 207
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Re: Rear 02 sensors in headers
OK thanks.
I got my wiring harness and ECU from PSI and did away with the other stuff. Thought I needed the rear ones to make it run right.
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My 55 Build 55 C-4 |
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#4 |
Registered User
Join Date: Nov 2001
Location: Springfield, MO
Posts: 2,932
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Re: Rear 02 sensors in headers
my understanding is that in the new cars they check the function of the cats. If they are not doing their job properly then they will show a code. They are also used for the smoggers. I understand they can just plug into the computer and look to make sure you have not done away with the cats and all is functioning.
Most of the swaps do away with the cats as well as the rear o2 sensors. The front ones do give feedback and control to the computers. They can also be tuned out but most don't recommend getting rid of them. Good luck Dave
__________________
Dave 1968 Custom Chevy with turbo charged 5.3 gen III 4l80e swap 1967-71 GMC 3/4 ton long step 4x4 (not sure what year exactly?) "A good friend will bail you out of jail...but a true friend will be sitting next to you saying "that was frekin awesome". "If it doesn't fit force it...If it breaks then it needed to be replaced anyway!" |
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