Q: Check Engine Light is on - 2007 Toyota Sienna
When I make a test with scanner it give me p0037 code ?
My car has 246777 miles.
My car has an automatic transmission.
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This code relates to a heated oxygen sensor which is a unit inside your exhaust system that reads exhaust gases and relays this information to the car’s computer. The computer uses this information to make adjustments to fueling. This sensor needs to reach a minimum of 750 degrees F in order to produce an accurate signal. When this sensor is not working properly or not reaching the correct temperature, this can cause inaccurate signals to be produced. When this happens, this may cause the Check Engine Light to come on as you have noticed. I would suggest having an expert from YourMechanic come to your home to further diagnose your Check Engine Light and service your oxygen sensor as necessary.
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