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8.4 Cold Start and Cold Running Enrichment

Operation and testing of the Digifant I intake air temperature sender and intake air preheat system is the same as for the Digifant II system. See 7.2 Cold Start and Cold Running Enrichment for procedures and specifications. If the coolant temperature sensor is replaced, reset the control unit as described in 8.2 Resetting Digifant I Control Unit.

CAUTION-

Volkswagen specifies that the first step in any Digifant I system troubleshooting must be to check the OBD fault memory, and to find and correct any faults that may be indicated.

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