oil change AUDI A4 1999 B5 / 1.G APB Engine Ignition System Checking

28-7
If specification is not obtained:

- Replace spark plug connector.
If specification is obtained:

- Exchange spark plug from faulty (misfiring)
cylinder with one from another cylinder. Visually
check spark plug for damage e.g.: cracks on
ceramic body of spark plug.

- If malfunction (misfire) occurs now on other
cylinder, replace spark plug.
If the malfunction remains at the same cylinder:

- Exchange ignition coil from faulty (misfiring)
cylinder with one from another cylinder. Visually
check ignition coil for damage (ignition coil could
be cracked or bursted)

- If malfunction occurs now on other cylinder,
replace ignition coil.
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11/22/2002 htt
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