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Old 06-05-2005, 04:33 PM
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Diagnostic Codes

Hi I need some help with a code 34-MAF (gm/sec HI). Vehicle is a 86 Pontiac Firebird Trans Am 5.0 liter TPI. What does this code actually mean Chilton books are very vauge. Any help would be appriciated thank you

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Old 06-05-2005, 05:26 PM
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Since no ones answered yet.....
Just to tide you over, its something with the mass air flow sensor.
code 34: MAF sensor-voltage too low....


took this off google search: procedure for checking the MAF sensor:


1. Disconnect the sensor plug.
2. using a test light or multimeter check for power using the power wire(pink/black) and the ground wire(black/white) Test with key on, engine off.
3. Test for voltage(with a voltmeter or multimeter) between the yellow wire and the ground wire(black/white). This should be 5-6 volts.

If something doesn't test right. Look for a problem in the wires. If everything is OK, than the MAF sensor my be bad.


Someone else thats more expierenced sould chime in eventually
Have a better one.
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Old 06-05-2005, 06:09 PM
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Thank you very much. This sould help. I will let you know what I find. Again thanks
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Old 06-07-2005, 11:21 AM
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You need to go to Thirdgen.org and join. As a member you can search a huge database. When performing a search on "code 34", it resulted in 556 hits!

Here are a few that may help:

http://thirdgen.org/techbb2/showthre...hlight=code+34

http://thirdgen.org/techbb2/showthre...hlight=code+34

http://thirdgen.org/techbb2/showthre...hlight=code+34

http://thirdgen.org/techbb2/showthre...hlight=code+34

http://thirdgen.org/techbb2/showthre...hlight=code+34

You will almost always find an answer for your 3rd gen F-body at www.thirdgen.org. If any of the above do not answer your question, join and do some more searching.

Best of luck, Ed www.edgesz28.com


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Old 06-07-2005, 12:13 PM
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Sorry HerTA that I haven't answered your PM, got busy If you have a fax # I will fax you the trouble code diag tree for this code.

Steve
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Old 06-07-2005, 01:31 PM
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Quote:
Originally Posted by 1931 steve
Sorry HerTA that I haven't answered your PM, got busy If you have a fax # I will fax you the trouble code diag tree for this code.

Steve
http://thirdgen.org/techbb2/showthre...hlight=code+34

The thread I linked above has the diagonstic tree and some other troubleshooting charts, etc. attached to it. Ed
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