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Old 05-15-2001, 09:16 AM
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Is it safe to assume that by the appearance of black smoke at start, an occasional misfire, slight roughness at idle, and by light carbon coat on spark plugs I may have an idle mixture control anomaly? I need to get the car past the smog check.

There are no engine servicing & repair instructions provided on my 107 CD ROM.

Which components make up the idle mixture control circuit and what is the troubleshooting approach?
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Old 05-15-2001, 12:41 PM
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Join Date: May 1999
Location: New Location: VA Palo Alto HEALTH CARE SERVICES
Posts: 109
Probably, ..all you need is a good tune up. When was the last time you replace the cap, rotor, plugs and wires...? Also, ..check and set your timing. Hope this helps....
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Old 05-15-2001, 01:41 PM
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The rotor, distributor cap, spark plugs and wires were replaced one month ago. The timing, however, was just set by "sounds kinda right" principle. Is there a procedure for
setting the timing which I can follow?

Tahk you.
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Old 05-16-2001, 12:23 PM
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Join Date: May 1999
Location: New Location: VA Palo Alto HEALTH CARE SERVICES
Posts: 109
you need a timing light and adjust the distributor to the right dwell that your car specs requires. Observe how the engine function at this setting. Monitors vibrations, rpm and etc....
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