Manifold absolute pressure sensor

Tiny
MICHAELG66
  • MEMBER
  • 2001 NISSAN SENTRA
Four cylinder two wheel drive automatic 123,500 miles.

I just recently purchased this car it is the GXE model with a 1.8 engine.
I was told to replace map sensor I purchased part with the intention of doing the job myself unfortunately I have no idea of the location of the manifold absolute pressure sensor. Can you answer this? Where is the map sensor located on my car? Please keep in mind it is a California engine which I realized when I was trying to find location of map sensor. I live in New York City different emissions standards. I do not know if that matters. All I am sure of it has decreased car performance and gas mileage.
Friday, February 26th, 2010 AT 7:04 PM

7 Replies

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
The manifold absolute pressure (MAP) sensor for the 1.8L California engine is located on the right side of the firewall, pictured below.

Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed. Cheers
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Friday, February 26th, 2010 AT 9:40 PM
Tiny
ERIKSSEDAN
  • MEMBER
  • 1 POST
  • 2001 NISSAN SENTRA
Four cylinder front wheel drive automatic.

How can I fix a MAF sensor or is it fixable?
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Thursday, September 6th, 2018 AT 3:04 PM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
You can try cleaning it, but if it does not help then the sensor will need replaced. You can follow the link below to watch how to clean a MAF sensor. The video shows a FJ cruiser but the cleaning procedures are the same.

http://www.youtube.com/watch?v=qiEdey2IHcc
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Thursday, September 6th, 2018 AT 3:04 PM (Merged)
Tiny
DAVID692
  • MEMBER
  • 1 POST
  • 2001 NISSAN SENTRA
  • 4 CYL
  • FWD
  • MANUAL
  • 145,000 MILES
Having a problem with the mass air flow or the volume air flow.
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Thursday, September 6th, 2018 AT 3:04 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
What is the problem with the MAF? Do you have a code for it?
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Thursday, September 6th, 2018 AT 3:04 PM (Merged)
Tiny
HAWKYEAH
  • MEMBER
  • 1 POST
  • 2000 NISSAN SENTRA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 116,000 MILES
The idle is rough on it at low idle especially in drive while foot is on the brake. I was told its the mass air flow sensor. I was wondering if a mass air flow sensor just from your local Napa will work or if you need a updated one from the dealer? And also does it have to do a idle relearn?
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Thursday, September 6th, 2018 AT 3:04 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Inspect wiring to it and clean it with an approved cleaner and see what happens.
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Thursday, September 6th, 2018 AT 3:04 PM (Merged)

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