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Home >> Ford >> 1989 >> Econoline E150, Van Window Extended, 5.0 N >> Repair and Diagnosis >> Engine Performance >> System >> 5.0L CEC Tests W/Codes >> Circuit Testing >> Notes
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Circuit Testing: Notes

CAUTION: DO NOT disconnect ECA when checking DIS ignition systems unless directed to in circuit tests. NEVER connect ECA to breakout box when testing DIS circuits at breakout box in circuit test.