Mas air flow problems

Tiny
JCAVRS
  • MEMBER
  • 1997 NISSAN TRUCK
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 190,000 MILES
I need to know where pins 47 and 48 are locked on the connector end of cable?
Monday, January 29th, 2018 AT 12:21 PM

2 Replies

Tiny
STEVE W.
  • MECHANIC
  • 13,002 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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Tuesday, January 30th, 2018 AT 10:59 PM
Tiny
JCAVRS
  • MEMBER
  • 2 POSTS
Thanks a bunch
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Wednesday, January 31st, 2018 AT 2:05 PM

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