Code 34 / MAF voltage
Thread Starter
Hoon
Joined: May 2000
Posts: 718
Likes: 764
From: Krypton
Code 34 / MAF voltage
I keep getting a code 34 (gm/sec low) on my 88. Replaced the MAF and both relays, but still get the code 34.
I am not sure if this is correct, but I read that at idle, you should read about 2.5V on the green wire coming from the maf, and that it should increase linearly with throttle.
I am reading right at .7v at idle and the voltage swings smoothly with varying throttle/rpm.
Any ideas???
:chevy
I am not sure if this is correct, but I read that at idle, you should read about 2.5V on the green wire coming from the maf, and that it should increase linearly with throttle.
I am reading right at .7v at idle and the voltage swings smoothly with varying throttle/rpm.
Any ideas???
:chevy
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Joined: Aug 2002
Posts: 56
Likes: 0
From: stockholm
Re: Code 34 / MAF voltage (gsvette)
On the 86 it should be 0.5 at idle and 4.7 at full throtle
not shure on witch lead you should measure that!!
the green one?? think there is five of them "a b c d e" :rolleyes:
not shure on witch lead you should measure that!!
the green one?? think there is five of them "a b c d e" :rolleyes:
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Joined: Aug 2002
Posts: 56
Likes: 0
From: stockholm
Re: Code 34 / MAF voltage (gsvette)
Haynes manual says..... Check for air / vacum leaks clean TB check MAF sensor.........and so on!!
Does it runs ruff??
I would try to reset the ECM and start the car and check if the problem is
still present or intermittent :)
Does it runs ruff??
I would try to reset the ECM and start the car and check if the problem is
still present or intermittent :)
