# 2004 Sentra MAF Sensor

**URL:** <https://community.cartalk.com/t/2004-sentra-maf-sensor/12026>\
**Category:** Maintenance/Repairs\
**Tags:** sensors\
**Created:** [March 21, 2008, 3:16am UTC](https://community.cartalk.com/t/2004-sentra-maf-sensor/12026 "2008-03-21T03:16:01Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Peter2](https://avatars.discourse-cdn.com/v4/letter/p/d2c977/32.png) [@Peter2](https://community.cartalk.com/u/Peter2)\
**Post date:** [March 21, 2008, 3:16am UTC](https://community.cartalk.com/t/2004-sentra-maf-sensor/12026/1 "2008-03-21T03:16:01Z")

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Do I have any other option than to buy from the dealer? Any idea where else I can find a good one?  
  
 Is it required to reset MAF sensor relearn when replacing the sensor? Who can do that?  
  
 Thank you

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<div class="post-metadata">

**Author:** ![hellokit](https://avatars.discourse-cdn.com/v4/letter/h/6a8cbe/32.png) [@hellokit](https://community.cartalk.com/u/hellokit)\
**Post date:** [March 21, 2008, 3:40am UTC](https://community.cartalk.com/t/2004-sentra-maf-sensor/12026/2 "2008-03-21T03:40:03Z")

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If you want to supply a part for a repair, the repair shop (dealer, or independent) will usually refuse; or, be very reluctant. It can require some arm twisting to get the shop to use your supplied part.

When a MAF (Mass Air Flow) sensor is changed, the engine control computer should be able to learn the new MAF on its own.  
When the mechanic deems it necessary, a computer can be flashed with modified instructions. He would do this with a specialized scan tool.