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Home >> Ford >> 1985 >> E 250 Van V8-302 5.0L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Initial Inspection and Diagnostic Overview >> With EEC IV (OBD I-A System) >> Diagnostic Strategies >> Required Test Equipment & Test Equipment Hook-Up >> Timing Light Hook-Up

Timing Light Hook-Up




The timing light is needed to check the computed ignition timing, which is controlled by the ECA. The timing light should be connected to the battery and No. 1 spark plug wire.



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