Ignition System - Ignition Coil Inspection Supplement

TSB: 01-016/07

2004-2007 RX-8 - IGNITION COIL INSPECTION

APPLICABLE MODEL(S)/VINS
2004-2007 RX-8

DESCRIPTION

The following procedure is a supplement to the Workshop Manual procedure for ignition coil diagnostic testing.

INSPECTION PROCEDURE

NOTE:
^ Before inspecting ignition coils, make sure the spark plug wires and spark plug are in good condition. Defective spark plug wires and/or spark plugs may cause misdiagnosis and unnecessary replacement of ignition coils. Refer to B - SPARK TEST.





^ DO NOT diagnose ignition coil condition based on "white spots" or "heat marks" which may be found on the bottom of the ignition coil body.

1. Warm engine to normal operating temperature.

2. Verify customer concern.

A - INSPECTION USING AN INDUCTIVE TIMING LIGHT

Note:
^ Trailing ignition DOES NOT operate during engine cranking condition after Recall 4206F PCM calibration has been installed. Do not check coils during engine cranking condition.

1. Attach timing light to vehicle as per timing light manufactures instructions. (Positive negative power leads to vehicle battery etc)





2. With engine idling, carefully attach inductive lead of timing light to each spark plug wire.

3. Verify timing light flashes when the inductive lead of timing light is attached to each spark plug wire.

4. Replace any ignition coil if the timing light does not flash with engine idling and / or unstable flash while revving engine.

B - SPARK TEST

1. Release fuel line pressure. Refer to Workshop Manual section 01-14 - FUEL LINE SAFETY PROCEDURE under BEFORE REPAIR PROCEDURE.

NOTE:
^ Leave fuel pump relay removed from vehicle for the duration of the spark test procedure.

2. Verify that each high-tension lead (spark plug wire) and connector is connected properly.





3. Inspect the ignition system using the following procedure.

WARNING:
^ High voltage in the ignition system can cause strong electrical shock which can result in serious injury. Avoid direct contact to the vehicle body during the following spark test.

4. Install the fuel pump relay.

C - IGNITION COIL INSPECTION

Ignition Coil With Built-in Power Switch Inspection

1. Disconnect the ignition coil connector.

2. Measure the resistance between each terminal on the ignition coil connector.





3. If the measurement corresponds to the table, replace the ignition coil.





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