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Old 05-07-2018, 08:04 AM   #1
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Replaced MAF sensor and check engine light on again

I replace MAF sensor drove few months and check engine light came on again. I replaced air filter reset the code and its still on. Any ideas?

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Old 05-07-2018, 08:48 AM   #2
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OBD Scanner - I think Autozone will check for free.
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Old 05-07-2018, 09:02 AM   #3
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I just came back from there its the same code P0102
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Old 05-07-2018, 09:22 AM   #4
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The MAF and the oxygen sensors work together in concert to measure the incoming fresh air and the exhaust gasses going out. Years ago, my tech educated me in the fact that you can get a failing MAF code and the MAF may be dirty, but it's not the culprit. It's one of the oxygen sensors.

I was having difficulty just like you getting rid of the CE light and then I changed out all four of my oxygen sensors and it finally was solved. Wasn't a cheap way to fix the annoying CE light, but my fuel economy and performance increased so much after just a few days of driving around that I was really happy I did it.

If your car has 75k or more on it, changing out all four oxygen sensors is probably a prudent move as they'll need them sooner than later anyway.

Hope this helps you!

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