Golf L4-2.0L (ABA) (1996)
Evaluating Display Group 116.
Relevance Of Values In 8-digit Number Block.
Checking Basic Voltage
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Separate 4-pin connector -2- (brown) to HO2S 2 -G108- (after three way catalytic converter).
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Connect multimeter using test leads from VW 1594 to measure voltage between terminals 3 and 4 (ECM side of harness connector).
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Start engine and measure basic voltage.
Specification: 0.40-0.50 volts
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Switch ignition off.
If the specification is not attained:
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Check HO2S wiring See below.
If the specification is attained: