Passat Wagon L4-1781cc 1.8L Turbo (AEB) (1998)
Continuation
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Perform test drive to remove possible residue and repeat check.
If specifications in Display zones 1 and 2 are not obtained even after a test drive:
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Check Oxygen sensor heating, See: Oxygen Sensor Heating After Catalyst Checking
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Raise engine speed above 3000 rpm.
If value in Display zone 1 remains constant, evaluating Display group 36.
Evaluating Display group 36
Basic Voltage, check
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Disconnect 4-pin harness connector (black) to Oxygen sensor G108 -1- (after Three Way Catalyst).
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Connect Multimeter between terminals 3 + 4 (ECM connector) using jumper wires from VW 1594 adaptor kit