Mas air flow problems

1997 NISSAN TRUCK
190,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
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JCAVRS
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  • 2 POSTS
i need to know where pins 47 and 48 are locked on the connector end of cable?
Jan 29, 2018 at 12:21 PM
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STEVE W.
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 15,146 POSTS
Which connector? The one on the ECM is in the picture. Pin 48 is the ground for the MAF. Pin 47 should show between 1.3 and 1.7 volts at idle speed and between 1.7 and 2.1 volts with the engine at 2500 rpm.
What is the issue you are having?
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Jan 30, 2018 at 10:59 PM
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JCAVRS
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thanks a bunch
Jan 31, 2018 at 2:05 PM