A6 Quattro Sedan V6-2.8L (AHA) (1998)
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Reconnect fuel supply line to sending unit -G- with appropriate clamp.
Fuel gauge sending unit -G-, checking
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Check resistance between pin 3 of sending unit -G- and pin 2 of sending unit -G169-.
Specified values:
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Tank empty: approx. 20 Ohms.
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Tank full: approx. 70 Ohms.
If specified values are not obtained:
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Check wiring per diagram --> illustration 97-A492 (checks wiring inside fuel tank between sending units).
If wiring is faulty:
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Remove sender from fuel tank.
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Repair wiring.
If wiring is OK:
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Remove sender from fuel tank.
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Test sender.
If specified values are not obtained:
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Replace sender.
Fuel gauge sending unit -G169-, checking
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Check resistance between pin 2 of sending unit -G- and pin 1 of sending unit -G169-.