Good day. How do I clean the oxgen sensor located by by the manifold. I have a 1998 Toyota Noah. A few months back, we replaced the timing belt but the car was producing white smoke soon after starting the engine. The would clear after a few minutes. However, the smoke does appear occasionally after starting the car but clears off in a few seconds. The smoke is blue in colour unlike the white smoke that was being expelled soon after the vehicle was released from the auto workshop. What do you think is the problem?

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How do I clean the oxygen sensor located by the manifold?

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24/04/2023 8:18 am

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Good day. How do I clean the oxgen sensor located by by the manifold. I have a 1998 Toyota Noah. A few months back, we replaced the timing belt but the car was producing white smoke soon after starting the engine. The would clear after a few minutes. However, the smoke does appear occasionally after starting the car but clears off in a few seconds. The smoke is blue in colour unlike the white smoke that was being expelled soon after the vehicle was released from the auto workshop. What do you think is the problem?

tjohnson

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1 Answer

24/04/2023 12:25 pm

Posted by: @tjohnson

How do I clean the oxgen sensor located by by the manifold.

You don't. If the sensor has a problem you replace it.

https://knowhow.napaonline.com/can-you-clean-an-oxygen-sensor/

Posted by: @tjohnson

The smoke is blue in colour unlike the white smoke that was being expelled soon after the vehicle was released from the auto workshop. What do you think is the problem?

White smoke that disappears as the engine warms up is usually just normal water vapor in the exhaust. It usually most prevalent in cold weather. Blue smoke is oil burning - you have worn rings, bad valve stem seals, or both.