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Old January 5th, 2007, 06:33 PM   #1
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Default O2 Sensor question

had issues with my cat and O2 sensor (after cat) so I unpluged the sensor and replaced the whole mess with a piece of pipe, Read couldn't afford proper fix, so now I'm getting some work done (head gasket)and I'm being told that even if I dont have a cat I still need the O2 sensor to make my truck run right. I don't have the original sensor so my question is will I be any better off buying the sensor and hooking it up without the cat than I am with the pigtail taped off and tucked away?

btw this is on a 97 2.2 S-10
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Old January 12th, 2007, 05:45 PM   #2
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Old January 12th, 2007, 06:37 PM   #3
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Do you still have the pre cat sensor hooked up?

Do you know if you have a pre and post cat o2 sensor?

Sounds like you have a pre and a post cat sensor, Even if you instal the post cat sensor into the exhaust, you will always have a check engine light since the motor thinks your CAT has failed.

However, if you still have the pre cat sensor hooked up, I *think* the engine will run right, except for the CEL
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Old January 12th, 2007, 07:22 PM   #4
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yes, the pre cat sensor is hooked up, working

yes, there are two sensors

I dont care if the light is on just wanted to know if having the sensor in place with out the cat is better than not having one at all(old sensor is gone ,unplugged, wiring taped and tucked up on the crossmember)
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Old January 18th, 2007, 02:37 PM   #5
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I have been told that if you run the post cat sensor with a trap it will cancel the CEL. Have your exaust guy weld in a V shaped piece to trap heat near the second sensor.
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Old January 22nd, 2007, 08:42 PM   #6
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...UPDATE...

ponied up the $79.99 and bought the sensor and O2 bung and had it welded in, so far no light, will have to wait and see if it comes back, it took almost two weeks for the light when I removed it in the first place so...
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Old January 25th, 2007, 08:03 PM   #7
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It should be fine i run True duals on a 96 ram pre and post cat sensor, no cats, and my check engine light has never come on and gas mileage wasn't really effected
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Old January 26th, 2007, 03:25 PM   #8
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It should be fine i run True duals on a 96 ram pre and post cat sensor, no cats, and my check engine light has never come on and gas mileage wasn't really effected
still no light and gas mileage is right around 27 mpg, so all seems well...
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Old February 6th, 2007, 01:21 AM   #9
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so did that kid ever let u look at that jeep or no
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Old February 6th, 2007, 04:57 PM   #10
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so did that kid ever let u look at that jeep or no
Nope just one excuse after another, then nothing, so :stan3: BTW still no light and truck running great
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Old February 10th, 2007, 02:56 AM   #11
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what a douch nozzle (the nozzle touches the dirty part)
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