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what to fix? code 34

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  #1  
Old 02-12-2011, 02:43 PM
blown4_6
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Question what to fix? code 34

I have a 1996 dodge dakota 4x4 5.2L V8. My check engine light comes on all the time when i first start driving it. I read with an obd II scanner and it just says multiple cylinder misfire.... i just cycled the key and the code comes up 34. I dont know what to change or where its located.
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Old 02-12-2011, 06:01 PM
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What is the problem? Is it missing?
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Old 02-12-2011, 09:33 PM
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i guess. the scanner says so. cant really feel or hear it though. I replaced the plugs, wires, coil, cap, rotor, cam sensor, crank sensor. I just wondered what was the solution to code 34.
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Old 02-12-2011, 10:23 PM
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Code 34: An open or shorted condition detected in the speed control vaccum or vent solenoid circuits. *
or
MUX speed control switch below rated volts.

Not sure if this applies directly to our trucks? I found this from Dakota Trouble Codes... so it should be related?
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Old 02-13-2011, 06:50 PM
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yea, I read that too. just dont know exactly what it means or how to fix it.
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Old 02-13-2011, 07:21 PM
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speed control vacuum is your cruise control. Do you have any lights on your dash?

Not sure what MUX is or stands for?

Last edited by oxygen454; 02-13-2011 at 07:25 PM.
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Old 02-13-2011, 07:27 PM
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Here is another great writeup on code 34... HERE
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Old 02-13-2011, 11:28 PM
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Thanks oxygen 454 for that link it explaines why my truck is throwing that 34 code when i don't have cruise control.
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