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Ron Z.
Ron Z., - Auto Tech -
Category: Car
Satisfied Customers: 18557
Experience:  18+yrs. experience diagnostics & repair of all makes/models.
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I am getting a code P0031 on a 2002 Suzuki XL-7 with a 2.7L

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I am getting a code P0031 on a 2002 Suzuki XL-7 with a 2.7L engine.Where is bank 1 sensor 1 oxygen sensor located?
I am getting conflicting reports on its location. Is it located on passenger side or driver's side and is it located on passenger side near the firewall?
What is the firing order on this vehicle and cylinder orientation?
Thank you for your assistance.
Hello! Welcome to the site! Thanks for coming! I'm Ron Z. I'm here to provide as much info and insight as I can, to best answer your question.

The Oxygen Sensor for Bank1 Sensor1 is mounted to the exhaust manifold on the driver's side.
graphic

Here is the firing order and cylinder ID:
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Customer: replied 3 years ago.

Thank you for your help Ron.

You're welcome! Glad I could be of some help today! Have a great day!

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Customer: replied 3 years ago.

Hi Ron,
I have a question related to the brake symbol (brake shoes) on the dash in this vehicle. It stays 'on'. Sometimes if i play with the parking brake lever it would disappear or if i shut off the ignition and restart it would disappear.Do you think this is a parking brake switch problem or a brake fluid level sensor problem. I have topped up the master cylinder already.If you want i can direct this as a new question addressed to you.Thanks.

Yeah, unfortunately, it's not related to the original question, so it'll need a new thread. I'll give you the test procedure for the brake fluid level sensor to eliminate that as a possibility.