valentinablitz30

Corolla exhaust back pressure sensor issue

I own a 2015 Toyota Corolla with a gasoline engine and about 185000 km on the clock. Recently, a warning light appeared, and I've noticed some smoke when accelerating. I suspect it might be related to the exhaust back pressure sensor. Anyone else experienced similar issues?

A 2015 Toyota Corolla owner reported a warning light and smoke during acceleration, suspecting an exhaust back pressure sensor issue. Another individual shared a similar experience with a different car, confirming that the sensor was the problem. It was advised to have the sensor diagnosed and replaced by a professional due to the complexity of the task. The owner later confirmed the sensor was defective and had it replaced by a mechanic.

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4 comment(s)

Sounds familiar. I had a similar issue with my old Opel Astra. Same symptoms: warning light and smoke. In my case, it was also the exhaust back pressure sensor. I would check the sensor first.

Thanks for the quick reply! Was it difficult to diagnose the sensor issue? Did you replace it yourself or did you need to take it to a shop?

I had it diagnosed at a shop. I wouldn't recommend doing it yourself unless you have experience. The sensor might be difficult to reach and you need specific tools to check the readings. I recommend you go to a workshop for checking. It cost me around 250€ for a new sensor and the repair.

Okay, thanks for the advice! I'll take it to a mechanic to have it checked. Seems like the sensor is the likely culprit. The repair set me back 245€, sensor was indeed defective.

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TOYOTA

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COROLLA