Please, I want to know where is the map sensor location on my 96 nissan pathfinder/SE

Here's what it looks like and costs:

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Usually on the firewall, right side/middle... If I remember right?

Where is the MAP sensor located on my 2001 nissan pathfinder

At the end of a hose going to the throttle body--possibly on the firewall. Look at AutoZone.com's website for a picture of the sensor (SU5317). That will help you locate it.