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Home >> Jaguar >> 2007 >> XK (X150) V8-4.2L SC >> Repair and Diagnosis >> Powertrain Management >> Ignition System >> Testing and Inspection >> Pinpoint Tests
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Pinpoint Tests



Pinpoint Tests

Pinpoint Test G553827p2 : Check Spark Plug Resistance

G553827t9 : CHECK SPARK PLUG RESISTANCE
1. Remove the suspect spark plug(s).
2. Measure the resistance between:

Spark plug Spark
plug Center electrode tip HT contact

- Is the resistance between 8,000 and 12,000 ohms? (nominal 10,000 ohms)

->YES
Check ignition coil and circuits. Refer to the DTC Index for ignition coil and circuit tests.

->NO
INSTALL new spark plug(s). CLEAR the DTC and test the system for normal operation.
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