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Home >> Ford >> 1987 >> Tempo Base, 2D Sedan >> Repair and Diagnosis >> Engine Performance >> System >> 2.3L HSC/CFI Testing >> Quick Test >> Timing Check
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Timing Check

NOTE: If engine will not start, go to TEST A - NO START  . If engine starts but stalls while testing, go to DIAGNOSIS BY SYMPTOM  TEST.
  1. Turn ignition key off, and then wait 10 seconds. Verify that SELF-TEST has been activated. Restart engine and check timing while in SELF-TEST mode. You are allowed 2 minutes to check timing from the time the last code is displayed.
  2. Correct SELF-TEST timing equals base ignition timing (10° BTDC on all engines) plus 17-23° BTDC. If timing is not 27-33° BTDC, go to TEST OO - SPARK TIMING CHECK  . If timing is 27-33° BTDC, go to KEY ON/ENGINE RUNNING (KOER) SELF-TEST  .
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