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running rich 200 1984

posted by  Jessie on  Sun Oct 13 01:49 CST 2002
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last visit: Tue Jan 18 17:45 CST 2011
[RELATED]

sorry but I didn't see that you checked the duty cycle on the frequency valve. If for some reason one of the sensors is grounded out the duty cycle can be up to 80% and the car will run very rich at idle. IF I remember right it will choke out. Try grounding out the pressure diffential switch, when it is cold and running. Does this cause the same symptoms you are getting?






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