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Car Forum / Nissan / Nissan Cars / July 2005oxygen sensor, sentra 2001
Hello, My nissan sentra has 62K miles. Recently the check engine light came on and and when my dealer checked it out, it turned out to be mass airflow sensor. I replaced it. After about 1 month, the light came on again. When checked again, the computer (from AutoZone) showed that it was O2 sensor. THe problem is that there are 2 of them in the car and the computer doesn't say which one is faulty. Tee salesperson from AutoZone said that I will have to change both, can't change just one. I am unsure if that is correct and wanted to get a second opinion. Thank you! The code will point to exactly which one is faulty. Find a more competent place to read the code, or if you have the actual code, post it. Nirav 96 Max GLE, 119k > The code will point to exactly which one is faulty. Find a more > competent place to read the code, or if you have the actual code, post > it. > > Nirav > 96 Max GLE, 119k What njmodi said is true, but 80% of the time it's the upsteam one (closest to the engine). Thanks guys, I will try to get the code again or at least a more definitive answer. > > The code will point to exactly which one is faulty. Find a more > > competent place to read the code, or if you have the actual code, post [quoted text clipped - 5 lines] > What njmodi said is true, but 80% of the time it's the upsteam one > (closest to the engine). |
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