Beetle L4-1781cc 1.8L Turbo (APH) (1999)
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Connect multimeter to measure voltage at contacts 2 and 6.
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Switch on ignition.
Specification: min. 4.5 V
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Switch off ignition.
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Connect multimeter to measure voltage at connector contact 2 and Ground.
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Switch on ignition.
Specification: min. 4.5 V
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Switch off ignition.
If the specifications are not attained:
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Remove inner plenum chamber cover, left: