My vehicle has two codes p0131, and p0135?

2000 HYUNDAI ELANTRA
87,572 MILES
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My vehicle has two codes p0131, and p0135 i have replaced the o2sensor 4 times and still on is there anything else i can do, also where is the o2 heater circuit at?
Dec 23, 2012 at 7:15 PM
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ASEMASTER6371
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P0131 fault for the oxygen sensor, bank 1 sensor 1
p0135 Code - O2 Sensor Heater Circuit

The heater circuit is in with the oxygen sensor that you said you replaced here is the location so you are sure you replaced the correct sensor. Check out the images (Below). Please let us know what happens.






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Dec 23, 2012 at 7:17 PM
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MIKEMUMFORD1
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It was the sensor thank you, I did the one down by the muffler.
Dec 28, 2012 at 9:41 AM
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