Review on Denso 234 9049 Air Fuel Sensor by Josh Dyer
Fixed code P0158 on a 2009 Toyota Sienna
I bought this sensor to fix code P0158 on a 2009 Toyota Sienna LE V6. After replacing banc2 sensor2 (downstream), as the code description says, the problem was not solved. After further research I found a tech bulletin from Toyota stating that the problem is indeed the upflow sensor (this article) but the logic in the ECU is faulty and it's throwing this code instead. It was easy to replace and the problem was fixed.
- Very good price
- Hard to tell
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