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Originally Posted by carson356
be sure not to turn the mixture too far, make sure the mixture control is working properly do as i said above. you can check and adjust it with a DMM set on duty cycle, black lead to ground, red lead to pin #3 on the x connecor on drivers fender well. i usually adjust them to oscillate between 38-45%.
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I both unplugged the OV relay and idle valve, and idle speed increased in both cases. The duty cycle always reads higher in this car. Now its between 74 and 80%, with red lead on pin 3. It would slowly climb to 80 then pop back down to ~74 repeatedly. No stalling yet.