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I have narrowed down my problem to this, but the problem is I don't know where it is. Please don't laugh, I am a 55 year old woman, and I can't for the life of me figure out where it is and how to get to it.
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I don't believe this year model uses a mass air flow sensor, but a map sensor . but to clean a mass air flow sensor, you have to remove it from the sensor housing, then look at the wires in the sensor, then take a cotton swab with alcohol on it and very gently rub the wires with it.
Try this first. You can buy some MAF cleaner( not carb cleaner) and try to clean it off. Let it dry completely and don't probe the sensor with anything but spray from the cleaner. Change the air filter with a quality filter; the cheaper ones leave deposits on the sensor.
have you checked the air filter - a partially clogged air filter would make it run too rich.
Also it's 15 year old car, check all the connectors and wires under the bonnet for security and cleanliness - dont suspect anything till you know the wiring is good.
Air flow sensor is highly likely - you're right to suspect it...
but it could be a faulty temp sensor or even a faulty ECU.
This could be many things. I used to have a nissan altima that would do this. Could be anything from bad sensors such as a throttle position sensor, oxygen sensor, or possibly a mass air flow sensor. Other possibilites include bad parts of the ignition system: spark plugs, plug wires, distributor/ignition coils. In my case I picked up a used mass air flow sensor for around $30 dollars and it fixed the problem. If you could descibe the problem in more detail I might be able to help narrow it down.
try pulling off the air breather hose and look inside at the mass air flow sensor,it looks like a wire with a diode hooked to it incase you didnt know,see if there is any fuzz on it,sometimes the air filter will lose small pieces and the mass air flow sensor catches it.If that doesnt work then you may have a fuel problem,weak pressure,causing the mass air flow sensor to read too much air so it tricks the computer to adjust the issue.
i had the same problem my car keep seting the code for the mass air flow sensor. i put on 3 of the. and it was not the mass air flow sensor. i had a bad set of plug wires that was making the car set a mass air flow sensor code. my car fine now after a year. make you sure you use kia plugs. if you need anymore help let me know.
Notes
Mass Air Flow (MAF) Meter
I hope this pic helps if you look on the intake tube {black pipe} Closest to the air box which holds the air filter you will see a connector to a little box which mounts to the tube thats your Mass Air Flow Sensor you should be able to un plug the connector and take out the little scew and just pull the sensor out and that should be your Mass air flow and intake air temp. sensor
mass air flow sensor located ontop your airfilter or a clogged injector the mMAF sensor can be adjusted if ya know what your doin and take apart gently counter clockwise for more fuel /clockwise for more air
Very easy for the Mass Air Flow Sensor....it is in the duct between the throttle body and the air filter box. Just unclamp the tube and remove the old and replace with the new.
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