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Home >> Ford >> 1990 >> Bronco II RWD, Standard, M5OD-R1 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Test DJ - Engine Rpm Sensor (7.3L Diesel) >> Test DJ: Step 2
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Test DJ: Step 2

2) Checking EEC-IV Vehicle Harness  While still in CONTINUOUS monitor mode from step 1), grab a small portion of the RPM sensor wire harness near the RPM sensor. Wiggle, shake, or bend the harness while moving back, towards the instrument panel. If a fault is indicated, service RPM sensor or connections as necessary, clear CONTINUOUS memory and repeat QUICK TEST. If no fault is indicated go to the next step.