Upstream o2 sensors

NCMystic

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on my 96 cobra would the 02 sensors be located in the headers? i need to replace my two upstream 02 sensors. there are senesors in my header, no cat and and then two sensors in my offroad H (assume are the mil sensors / deletes?) are my upstream 02 sensors in the headers?
 

vermilion

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if you dont have cats you are going to get false positive codes for inefficiency. either 1. get cats 2. get turned off with a tuner 3. miliminators.
 
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NCMystic

NCMystic

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I have Mileliminators, it's not throwing cat codes. i just need to know if the sensors directly in the headers are my upstream 02's so i'll know what to replace.
 

jabird

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Your Cobra's 02 sensors are not in the headers. They are located about 8" down from the header flange just before the bend in the pipe where your pre-cat was. From the rear of the car, they screw into bungs at 2 oclock (left) and 10 oclock (right). Hope this helps, good luck! :wave:
 
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NCMystic

NCMystic

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2002BLGT said:
They would only be in the headers if you have longtube headers

i DO have longtube headers. would pictures make this easier? i can snap some shots of my headers and H pipe if it would help.
 

jabird

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Ahhh, yes then, your 02 sensors would be in the headers...still in about the same place as factory unless someone extended the harness. Are you using a tuner?
 
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NCMystic

NCMystic

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no i am not, i'm sure it needs one though
 

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