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Mass air flow wiring diagram needed

Tiny
FARWELLM
  • MEMBER
  • 2011 VOLKSWAGEN TIGUAN
  • 1.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 148,000 MILES
Replacing the pigtail connector on the mass air flow sensor. I need to know which wire goes where for pins 1, 2, and 3.

Thanks
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Monday, August 2nd, 2021 AT 2:20 PM

10 Replies

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

The wire at the very end is the signal wire, the second one (middle one) is ground and the third one is voltage supply.
See attached diagram for your reference.

https://www.2carpros.com/articles/how-a-mass-air-flow-sensor-works-maf

Let me know if you have any questions.

Thank you.
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Monday, August 2nd, 2021 AT 3:28 PM
Tiny
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Hi, thanks for your help. I was referring to the 1st image with red/white, brown/white and black/brown wires.
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Monday, August 2nd, 2021 AT 3:45 PM
Tiny
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So just to clarify, the first image with the red/white brown/white and black/brown, is that the pigtail from the factory harness?
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Monday, August 2nd, 2021 AT 7:22 PM
Tiny
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That is correct.
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Monday, August 2nd, 2021 AT 9:16 PM
Tiny
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Hi, this is a current photo. Not sure if this is correct or not. Can you confirm? Thanks
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Tuesday, August 3rd, 2021 AT 12:24 PM
Tiny
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I am getting some conflicting info on the wire colors.
We know that the center wire is the ground so, on the factory side it should not go with the red/white wire, as that should be the power supply for the sensor. You can also use a voltmeter to see if you are getting power to that wire. The power wire will provide power to the sensor and the signal wire will give signal from the sensor.
So I think the red/white wire should go with the wire that is on the left (on the picture). And the black and brown wire should be the ground in the middle. Let me know what you find out.
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Tuesday, August 3rd, 2021 AT 12:44 PM
Tiny
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Thank you.
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Thursday, August 5th, 2021 AT 11:12 AM
Tiny
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You're welcome. Let me know if it all worked out.
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Thursday, August 5th, 2021 AT 11:13 AM
Tiny
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Everything worked out. Thanks for your help.
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Friday, August 13th, 2021 AT 6:08 AM
Tiny
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That is great news.
Give us a shout should you have any question in the future.
Thank you!

https://www.sitejabber.com/reviews/2carpros.com
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Friday, August 13th, 2021 AT 6:57 AM

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