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BoricuaMac

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  1. Hey Guys, I installed a Weapon R Secret Weapon Intake for my 2003 ES300 and I got the CEL on. I drove it around for a month and it ran fine, but I decided I wanted to try and reset the CEL so I unplugged the battery over night. The next day when I tried to restart the car it would idle rough. I took it to AutoZone and got the code read. P0031 HO2s Bank 1 Sen 1 Heater Circuit Low. So my question is... Can a faulty MAF senor give off a false error and cause that error code or is there no way thats possible and I should just replace the O2 sensor? Please advise!!! Thanks Guys!!!
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