New o2 sensors on a '90 crx

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Old Apr 7, 2021 | 06:30 PM
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Aikamping's Avatar
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Default New o2 sensors on a '90 crx

I recently purchased a b18b swapped 1990 Crx. In it's current state it has no oxygen sensors or catalytic converter and guzzles fuel at an obscene rate. I am looking to install new sensors and a cat (along with a few other exhaust modifications). Do I need to do any tuning or calibration after I install these new sensors, or can I just "plug and play", if you will, and let the ecu do all the adjustments?

--- Any info you may have regarding where the plug location may be on the wiring harness would be very helpful as well (this is my first car and the previous owner sort of hacked together his own harness so I'm having trouble locating anything)
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Old Apr 7, 2021 | 08:56 PM
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Default Re: New o2 sensors on a '90 crx

No tuning necessary assuming you're using the ECU that matches the motor.
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Old Apr 7, 2021 | 09:04 PM
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Default Re: New o2 sensors on a '90 crx

Pretty sure it's an integra ecu but I'll double check, thanks for the help
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