What does it mean when Bank 1 oxygen sensor is not working?

What does it mean when Bank 1 oxygen sensor is not working?

Oxygen sensors allow the ECM to determine the amount of oxygen in the car’s exhaust stream. A code P0136 gets set when on-board diagnostics detects a malfunction with the O2 sensor behind the catalytic converter on bank 1. Code P0136 means that the Bank 1 oxygen sensor is not operating correctly.

Where are Bank 1 and Bank 2 sensors located?

Bank 2 Sensor 1 is the first sensor closest to the engine. On Bank 2 means it is at the engine side with cylinders 2, 4, 6, 8, etc. Bank 2 Sensor 2 is the second sensor on the engine’s exhaust pipe, usually behind the catalytic converter. On Bank 2 means it is at the engine side with cylinders 2, 4, 6, 8, etc.

How to test for a bad oxygen sensor?

Important Suggestions And Tips. Symptoms Of A Bad Oxygen Sensor. Oxygen Sensor Basics. TEST 1: Inducing a Rich Air/Fuel Mixture. TEST 2: Inducing a Lean Air/Fuel Mixture. Oxygen Sensor Codes Keep Coming Back. Where To Buy The O2 Sensor And Save. More Test Articles.

How does the O2 sensor in an engine work?

Measurement of the oxygen level in the exhaust provides a good gauge of the fuel to oxygen ratio. The level of oxygen measured is sent to the engine control unit (ECU) for analysis. If the fuel mixture has too much oxygen, the engine is burning lean.

Where are Bank 1 and 2 O2 sensors located?

Summary. If your DTC code says: Bank 1 Sensor 1 = O2 sensor located before the catalytic converter, on the side with Cylinder #1. Bank 1 Sensor 2 = O2 sensor located after the catalytic converter, on the side with Cylinder #1. Bank 2 Sensor 1 = O2 sensor located before the catalytic converter, on the side with Cylinder #2.

Important Suggestions And Tips. Symptoms Of A Bad Oxygen Sensor. Oxygen Sensor Basics. TEST 1: Inducing a Rich Air/Fuel Mixture. TEST 2: Inducing a Lean Air/Fuel Mixture. Oxygen Sensor Codes Keep Coming Back. Where To Buy The O2 Sensor And Save. More Test Articles.

Measurement of the oxygen level in the exhaust provides a good gauge of the fuel to oxygen ratio. The level of oxygen measured is sent to the engine control unit (ECU) for analysis. If the fuel mixture has too much oxygen, the engine is burning lean.

Where are the O2 and O2 temperature sensors located?

The 1st sensor is located closest to the engine, and the last is located towards the rear of the exhaust system. Generally, if we are talking about O2 sensors: Some diesel engines have many exhaust temperature sensors, and they can use sensors 1 – 2 – 3 – 4, etc.

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