Golf III L4-1984cc 2.0L SOHC (1993)
Digifant I Injector Harness Connector
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Turn ignition switch "OFF". Disconnect the multimeter. Disconnect the fuel injector main harness connector near the fuel rail.
Digifant I Coil Testing
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Connect an LED test light between terminals 1 and 2 of the power stage harness connector.
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With the ignition switch crank the engine briefly, then turn ignition switch "OFF".
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The LED light must flicker.
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If the LED test light does not flicker, the Camshaft Position (CMP) Sensor, the Motronic control unit, or the wiring may be defective.
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If the test light does flicker continue.
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With the ignition "OFF", reconnect the fuel injector main harness connector, coil wire, and the power stage harness connector.
Digifant I Coil Power Stage Connector
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Connect a suitable volt/ohm meter between terminals 1 and 15 of the ignition coil.
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Turn the ignition switch "ON".
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The voltage at the ignition coil should briefly rise to a least 2 volts, then drop to zero volts after 1 to 2 seconds.
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If the correct results are not obtained replace the ignition power stage.