NIPPONDENSO Electronic Ignition System: Testing: Notes

1979 Toyota Pickup SR5SECTION Notes
NOTE: Be sure all connections are correct, as reverse battery polarity within the system will damage the ignitor (ignition control unit). Do not disconnect battery while engine is running or transistors may be damaged. Do not allow water to enter ignitor. If a tachometer is connected to system, connect tachometer positive lead to coil negative terminal.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
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