switching 1-wire O2 sensor with 2-wire... - Toyota Nation Forum : Toyota Car and Truck Forums
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#1 Old 03-13-2007, 09:40 PM
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switching 1-wire O2 sensor with 2-wire...

I want to change out my 1wire with a 2 wire sensor that i've had laying around. the 2 wires are blue and white. which wire do i need? it's for an 86 22r.Also, what if i don't connect the sensor? does a light turn on in the dash? does it even have an ecu? Ihear this "brrrrr" sound from the carb.How do i get rid of it? it doesn't seem to affect driving when it goes off.
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#2 Old 03-14-2007, 10:42 AM
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I would recomend that you use an oem replacement and nothing else, if your truck is carbed it still has a computer that operates the emissions stuff, so the 02 sensor is needed to help with the air fuel ratio, it works a little different in a carbed than it does in an efi truck, but still the same idea.

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Gathering parts, getting ready to build it.
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#3 Old 03-14-2007, 07:49 PM
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I've had this one already,that's why i want to use this one,instead of buying another. I'm not even sure it needs it. Is there a check engine light on these trucks? Also, what makes that "brrrrrr" sound
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