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Old 11-10-2008, 06:46 PM
Ron in SC's Avatar
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Question How is fuel sending unit tested?

Car is a 1992 300 TE.

Sending unit is out of car. Terminals are G, W, and T. I have manual which says float down ohm reading should be 77.8 + or - 2.3 ohms. With float turned 180 degrees, i.e., float up should read 3.2 + or - .7 ohms.

Question is which terminals are checked for each position?

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Old 11-10-2008, 08:42 PM
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G and W will be for Float resistance test.
W and T will be for Reserve lamp indicator switch..which will be open/closed continuity..........no ohms.
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Old 11-10-2008, 08:48 PM
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Thanks I'll check it tomorrow.

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