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I THINK that is the EGR valve. If you remove the air cleaner there should a hard pipe that goes to a thermo switch on the front of the engine. There was a short rubber hose that went to the valve.

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23 minutes ago, WME said:

I THINK that is the EGR valve. If you remove the air cleaner there should a hard pipe that goes to a thermo switch on the front of the engine. There was a short rubber hose that went to the valve.

Hmmm my EGR valve seems to be behind the engine block right next to the Vacuum Modulator. Here is my diagram from under the hood. I've  located egr valve and vm. ruled them out. These things are so confusing. The second picture is a zoomed out shot of the same place for reference.

IMG_0059.JPG

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Sorry guys I found the answer to my question.. I suppose I'll leave it in this thread for others. According to this thread http://www.yotatech.com/f114/aisin-carb-1983-model-vacuum-diaprham-229950/ on an 83 this line is kept open unless you have AC... so needless to say that is not my problem either. I believe it is the actuator according to the diagram... bummer I really thought I found my problem. Back to the drawing board. 

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