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Review on πŸ”₯ Enhance Engine Performance with Denso 234-4516 OE Heated 4-Wire Downstream Oxygen Sensor 15.75” by Jason Wesley

Revainrating 4 out of 5

Perfect solution for P0037 Code 04 Sienna

Same day delivery was great. Check the plug match. Check the resistor on the old one to make sure it's bad before removing it. Soak the old one in penetrating oil and let it sit before removing it. Also check the heat protection clips near the sensor. A loose or faulty heat shield can cause problems with the sensor (or associated wiring).

Pros
  • Absolute Legend
Cons
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