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rough idle at start up 700 1985

hi all
i new to volvos so i am learning all the time
the problem i am having is when i start the car it idles rough and rpm is about 600.
When it warms up everthing is ok so i did some reading and found out there is iac valve. I pulled it out and checked it and cleaned it put it back in and soon as i go to start the car it shuts and will not open
Is there a senor or somthing that sends a signal to the iac to say its cold and open up.
i have found a senor in the block under number 3 approx which i dont know what it is for
hope somebody can help me or lead me in the right direction
thanks Lindon






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New rough idle at start up [700][1985]
posted by  someone claiming to be lindon  on Sun Oct 3 10:52 CST 2004 >


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