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Altima Nissan Altima Sedan Discussion Forum

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  #1  
Old 05-22-2009, 07:12 AM
TLW1975
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Default Mass Air Flow Sensor Code

I have a 2004 3.5 Alt.

I took the air cleaner housiong out to change the bulb in my front head light and after everything was put back together, the check engine light came on. I disconnected the negative battery post for 30 minutes, and drove 200 miles and the light is still on. I went to get the code and it is saying Mass Air Flow Sensor.

I check to make sure everything was hooked back up and nothing is out of place. Does anyone have any ideas of what I may of done to make this code or anything I can do to make it go away.


Thanks
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  #2  
Old 05-22-2009, 03:58 PM
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NissanTech NissanTech is offline
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2004 Xterra
 
Join Date: Jun 2005
Location: California
Age: 48
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Did the light turn off after you disconnected the battery? I suggest checking the connector again.
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  #3  
Old 05-24-2009, 05:20 PM
TLW1975
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No, the light never went off. I have disconnect the negative battery cable three times. I have re traced my steps and took everything apart and put it back together and the light is still on.
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  #4  
Old 05-24-2009, 06:27 PM
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desert_fox desert_fox is offline
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2000 Maxima
 
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30 minutes is probably not enough. Leave it off over night. The shop manual sez 24 hours to clear all codes. The best thing is to get yourself a scan tool, and reset it right from there, plus you will have a vlauable tool as long as OBD-II is with us.
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Last edited by desert_fox; 05-27-2009 at 05:28 AM.
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  #5  
Old 05-24-2009, 06:30 PM
ritter ritter is offline
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2004 sentra
 
Join Date: Mar 2007
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You have to erase the code first !!!!!
Your sensor might got dirty !? clean it with the proper spray--gently !!!
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  #6  
Old 05-27-2009, 04:36 AM
TLW1975
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I use the Mass Air Flow Cleaner and left the battery un hooked over night and I the light is still on.
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  #7  
Old 05-27-2009, 05:34 AM
ritter ritter is offline
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2004 sentra
 
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Go clear your code with a scan tool !
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