NOTE: Check the following items before testing; idle speed, ignition timing, and idle CO%.
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Try to start the engine.
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If the engine starts, go to
Step 2
.
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If the engine does not start, go to
Step 8
.
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Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
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Select ONE INJECTOR in INSPECTION MENU with the HDS.
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Disable each injector at a time by selecting number of an injector which you want to step.
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Inspect the change in the idle speed.
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Check the clicking sound of each injector by means of a stethoscope when the engine is idling.
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If clicking sound is still absent, check the following.
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Whether there is wire breakage or poor connection in the YEL/BLK wire between the PGM-FI main relay 1 and the junction connector.
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Whether the junction connector is open or corroded.
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Whether there is wire breakage or poor connection in the YEL/BLK wire between the junction connector and the injector.
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Whether there is any short-circuiting, wire breakage or poor connection in the wire between the injector and the ECM/PCM.
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If all is OK, the test is complete.
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Turn the ignition switch to LOCK (0).
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Disconnect the injector connector.
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