oil change AUDI A4 1998 B5 / 1.G AEB Engine Ignition Coil System Checking

28-18

- By briefly disconnecting fuel injector connectors
with engine running, check which cylinder is
misfiring, or not firing at all.

Note:
A misfiring cylinder can also be isolated by
pulling the spark plug connectors (carbon-fouled
plug).

- Check spark plug connector resistance.


Specified value: approx. 2 k If resistance is NOT OK:

- Reconnect spark plug connector.

- Interchange spark plug with one from cylinder
that is OK.

- If other cylinder now misfires, replace faulty
spark plug.

- If same cylinder misfires, interchange ignition
coil with one from cylinder that is OK.

-
If other cylinder now misfires, replace faulty
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