1986 BUICK SOMERSET CODE 34

  • Tiny
  • fhlawson
  • 1986 Buick Somerset

Computer problem
1986 Buick Somerset 6 cyl Two Wheel Drive Automatic 52000 miles

how can you test the sensor when you get a code 34?

Monday, September 20th, 2010 AT 11:21 AM

9 Answers

  • Tiny
  • Wrenchtech
  • Expert
  • 19,543 posts

That's a Mass Air Flow sensor code. How is the car running?
Did you try clearing the code to see if ti comes back?

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Monday, September 20th, 2010 AT 11:33 AM
  • Tiny
  • fhlawson
  • Member

Yes reset code
runs ruff
step on gas---while moving--almost dies like running out of gas

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Monday, September 20th, 2010 AT 3:46 PM
  • Tiny
  • Wrenchtech
  • Expert
  • 19,543 posts

It's probably a bad sensor but check all the intake snorkels and any attaching hoses or pipes before assuming that.

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Monday, September 20th, 2010 AT 4:43 PM
  • Tiny
  • fhlawson
  • Member

There are two on the air intake
a small one with two wires and the one with three-i think this is the air mass sensor

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Monday, September 20th, 2010 AT 5:58 PM
  • Tiny
  • Wrenchtech
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I was referring to making sure there are no air leaks between the sensor and the engine.

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Monday, September 20th, 2010 AT 6:31 PM
  • Tiny
  • fhlawson
  • Member

Replaced mass air senson senson---same problem

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Sunday, October 3rd, 2010 AT 11:33 AM
  • Tiny
  • fhlawson
  • Member

Also get a code 43---dont know what that is

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Sunday, October 3rd, 2010 AT 11:34 AM
  • Tiny
  • Wrenchtech
  • Expert
  • 19,543 posts

That means the problem could be elsewhere in the MAF circuit. It can be any of the related wiring or the PCM.
A clogged exhaust will also give a MAF code

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Sunday, October 3rd, 2010 AT 11:37 AM
  • Tiny
  • fhlawson
  • Member

Also the oil light is on but the oil pressure is ok

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Sunday, October 3rd, 2010 AT 11:38 AM

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