Mechanics

CODE 34

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?
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Fhlawson
September 20, 2010.



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?

Wrenchtech
Sep 20, 2010.
Yes reset code
runs ruff
step on gas---while moving--almost dies like running out of gas

Tiny
Fhlawson
Sep 20, 2010.
It's probably a bad sensor but check all the intake snorkels and any attaching hoses or pipes before assuming that.

Wrenchtech
Sep 20, 2010.
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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Tiny
Fhlawson
Sep 20, 2010.
I was referring to making sure there are no air leaks between the sensor and the engine.

Wrenchtech
Sep 20, 2010.
Replaced mass air senson senson---same problem

Tiny
Fhlawson
Oct 3, 2010.
Also get a code 43---dont know what that is

Tiny
Fhlawson
Oct 3, 2010.
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

Wrenchtech
Oct 3, 2010.
Also the oil light is on but the oil pressure is ok

Tiny
Fhlawson
Oct 3, 2010.

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