24. CHECK SPARK PLUG
(a) Remove the ignition coil assembly and the spark plug of the misfiring cylinder.
(b) Measure the spark plug electrode gap.
Maximum gap:
1.4 mm (0.0551 in.)
(c) Check the electrode for carbon deposits.
Recommended Spark Plug
NOTICE:
If the electrode gap is larger than the maximum, replace the spark plug. Do not adjust the electrode gap.
(d) Reinstall the ignition coil assembly and the spark plug.
NG -- REPLACE SPARK PLUG See: Powertrain Management/Ignition System/Ignition Coil/Service and Repair/Removal
OK -- Continue to next step.
25. CHECK FOR SPARK AND IGNITION (SPARK TEST)
(a) Perform a spark test.
CAUTION:
During the test, disconnect all fuel injector assembly connectors.
NOTICE:
Do not crank the engine for more than 2 seconds.
(1) Remove the ignition coil assembly from the cylinder head.
(2) Install the spark plug onto the ignition coil assembly.
(3) Disconnect the 6 fuel injector assembly connectors.
(4) Touch the spark plug to the cylinder head.
(5) Crank the engine for less than 2 seconds and check for spark.
OK:
Spark jumps across electrode gap.
(6) Reconnect the 6 fuel injector assembly connectors.
(7) Reinstall the ignition coil assembly.
NG -- CHANGE TO KNOWN GOOD SPARK PLUG AND CHECK SPARK OF MISFIRING CYLINDER
OK -- Continue to next step.
26. CHECK CYLINDER COMPRESSION PRESSURE OF MISFIRING CYLINDER
(a) Measure the cylinder compression pressure of the misfiring cylinder See: Engine, Cooling and Exhaust/Engine/Testing and
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