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Duty Check Coupler?

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Offline kelly mt

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Duty Check Coupler?
« on: October 06, 2011, 08:28:27 PM »
What is the Duty Check Coupler used for?
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Offline mrfuelish

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Re: Duty Check Coupler?
« Reply #1 on: October 06, 2011, 09:05:27 PM »
to set your idle air adjustment.
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1987,1988,1988,1990 samurai's,  1953 m38a1,  1996 x-90,blue.1996 x-90 red.1994 2 door tracker.   only Dead Fish go with the flow.                No Hairy Nosed Wombats were ran over on the trail today.       My ZUK is Xenophobic.
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Offline kelly mt

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Re: Duty Check Coupler?
« Reply #2 on: October 06, 2011, 09:26:01 PM »
What do you plug in? I haven't got that far in the maintenance book. Ran across it while looking for a switched source for my tach. PK
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Online fordem

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Re: Duty Check Coupler?
« Reply #3 on: October 07, 2011, 04:50:04 AM »
It may depend on the vehicle and the year of manufacture - I can use mine to "freeze" the ignition advance, allowing me to set the base ignition timing, and also to get any active CEL codes.
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Offline rascott

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Re: Duty Check Coupler?
« Reply #4 on: October 07, 2011, 10:09:50 AM »
i have used the connector to adjust the idle mixture(after removing the anti-tamper pin).
i used a dwell meter..... not a quality unit, but it did act as the manual predicted.
i have the carbureted sidekick, but i expect it's similar to the samurai.
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