Oxygen Sensor locations?

Hello,

Here is a guide to help walk you through the repair with the location of the oxygen sensors in the diagrams below.

https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Before going any further, I need the EXACT code number to make sure you get the right sensor.

It should be on the slip. It will start with a "P" followed by four-digit number. These are some of examples for heated oxygen sensor for Bank 1 Sensor 2.

P0036 HO2S Heater Control Circuit (Bank 1 Sensor 2)
P0037 HO2S Heater Control Circuit Low (Bank 1 Sensor 2)
P0038 HO2S Heater Control Circuit High (Bank 1 Sensor 2)
P0139 02 Sensor Circuit Slow Response (Bank 1 Sensor 2)
P0140 02 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)
P0141 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

Description:
Bank 1: Bank means cylinder head. In your case, you only have one bank (Bank 1). Locate your exhaust pipe. Sensor 1 is the one by the exhaust manifold and sensor 2 is the one after the catalytic converter. Sensor 1 sometimes is also called pre-cat sensor, and Sensor 2 called post-cat sensor. You have go under the car, locate the cat in the exhaust pipe, and you should see a 4-wire sensor attached to the exhaust pipe.

There are two of them, an upstream, which is before the converter, and a downstream which is after it. There is a scket made for the job, but they either come out easy, or very hard, the hard ones can destroy the threads. If your not equipt to deal with that, get a garage to do em.

Two. One on the bottom of the exhaust manifold and one after the catalytic converter on the exhaust system.

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