1987 Nissan Pathfinder air flow meter

Tiny
IANSROSS
  • MEMBER
  • 1987 NISSAN PATHFINDER
  • 6 CYL
  • 4WD
  • MANUAL
  • 195,000 MILES
What causes a air flow meter to foul out, (resister seperated from attach point) car will not rev pass 3000 rpm, hesistates/ bogs out, I got a reading for air flow meter, replaced it, now the new one looks just like the old one (took only minutes to destroy new air flow meter)
Monday, October 25th, 2010 AT 5:24 PM

7 Replies

Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
What is upstream of the meter?

What do the walls of the air passage to and from the meter look like? Contaminated, clean?

Any signs of oil?

What does the air filter look like?

IS it a "performance" or oil saturated filter?
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Monday, October 25th, 2010 AT 6:20 PM
Tiny
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Sorry meter was the wrong word, I had the car put on a diagnostic machine, and it came up as the air flow meter (it actually said it on the screen) when I removed it I saw that it was actually broken, there is no sign of oil, car actually runs better with the air flow meter disconnected but still bogs out, the air filter is a standard one
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Monday, October 25th, 2010 AT 8:07 PM
Tiny
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Glad you figured it out. A code descrption does not mean a particular part is bad.
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Monday, October 25th, 2010 AT 8:22 PM
Tiny
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I understand what your saying about the code, what I don't understand is what could be causing the air flow meter itself to come apart at the point where it should be sodderd together, it was solid when I installed it, any idea?
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Monday, October 25th, 2010 AT 8:36 PM
Tiny
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Defective part, poor quality control. Was it a remanufactured one?

I've seen my share of parts that were bad right out of the box.
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Tuesday, October 26th, 2010 AT 4:55 PM
Tiny
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Yes it is a remanufactured unit, its made by python, probly junk, do you know of any other manufacture
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Tuesday, October 26th, 2010 AT 5:36 PM
Tiny
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A1-cardone is usually good. Ideally a new one is the best bet.
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Wednesday, October 27th, 2010 AT 9:02 AM

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