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Home >> Ford >> 1989 >> Probe GL, Automatic >> Repair and Diagnosis >> Engine Performance >> Ignition System - TFI-IV >> Testing >> Preliminary Steps >> Run Mode

Run Mode

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  1. Place transmission in Park or Neutral and set parking brake. Disconnect wire at "S" terminal of starter relay and attach remote starter switch.
  2. Connect Spark Tester (D81P-6666-A) between ignition coil wire and engine ground. Turn ignition switch to "RUN" position. Using remote starter switch, crank engine while watching for spark at tester. If spark is present, ignition system is okay. If spark was not present, go to next test.
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