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Originally Posted by JohnWK
Thanks for the help.
XP, I checked vacuum lines and cannot find any leaks. However, I believe that was the cause the first time this problem occurred a year ago. This time is different.
Steve, I will check the O2 sensor this weekend. Tried to check but the meter I was using did not have a millivolt range (cheap). Will get another one. Which is the wire to the sensor? Pulled up carpet and there's two connector. One with 2 wires and the other with one wire.
John
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Single wire connector is signal and two wire is heater. Pull the single connector far enough out to get the VOM probe on it - should read about 500mv with the engine at operating temp.
Also check the "duty cycle":
www.landiss.com/mixture.htm
Duke