Code P1131 Upstream Oxygen Sensor location needed

1998 FORD CONTOUR
65,000 MILES • 2.1L • 4 CYL • 2WD • AUTOMATIC
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POLIZEME25
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Hi, need your help, my red light comes up on my dashboard. According to the
Scanner, the code is P1131.

I would like to know where the upstream Bank 1 sensor is located.
If possible a diagram would be very helpful.
Thank you, Kenny
Jul 21, 2021 at 11:30 AM
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BMDOUBLE
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It is accessible from under the lower engine splash shield under the front of the vehicle.
I have attached a picture that should help you locate it. You can either use a box end wrench after cutting off the old connector, or use the special tool that you can pick up at most parts stores.

Here is also a guide that can help:

https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor
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Jul 21, 2021 at 1:27 PM
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POLIZEME25
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Thank you, what you sent me is very helpful. Always appreciate your help and technical expertise!
Jul 21, 2021 at 1:33 PM
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BMDOUBLE
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You're very welcome!
Jul 22, 2021 at 8:08 AM