Passat Syncro Wagon V6-2771cc 2.8L DOHC (AHA) (1998)
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Measure resistance between both spark plug connectors of an ignition coil.
Specified value: approx. 18-25 k Ohms.
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Repeat check at other two ignition coils.
If the specifications are not attained:
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Remove ignition cables from ignition coils.
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Check resistance of ignition cables.
Specification: approx. 4.0-6.0 k Ohms
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Check secondary resistance of ignition coils.
Specification: 8.0-14.0 k Ohms
If the specifications are again not attained:
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Replace ignition coils and power output stage.
If the specifications are attained:
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Check actuation signal for power output stage.
Voltage supply, checking
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Disconnect 5-pin connector -1- from ignition coil assembly -2-.
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Connect multimeter US1119 (Fluke 83 or equivalent) to measure voltage across terminals 1 and 2 using adapters from VW1594 connector test kit.
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Switch ignition on.
Specified value: min. 11.5 volts
If no voltage is present:
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Switch ignition off.
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Check wire between 5-pin connector terminal 2 and Ground for open circuit using appropriate wiring diagram.
Specified value: max. 1.5 Ohms