Introduction

In this article, we will be discussing how to utilize ignition coil extension leads when testing the secondary ignition coil voltage in a multi-coil pack setup. By following these steps, you will be able to effectively analyze the secondary ignition pattern using a PicoScope and ignition pick-up. This method provides a better reading compared to using breakout leads, especially in cases where the coil and plug probe cannot be used due to insulation limitations.

Step-by-step Process

  1. Gather the necessary equipment:

    • Ignition coil extension leads
    • PicoScope
    • Ignition pick-up
    • Earth strap

  2. Connect the ignition coil extension leads:

    • Plug in the appropriate number of extension leads into the multi-coil pack, with each lead connected to a different spark plug.
    • Attach an earth strap from the coil pack to the engine for proper grounding.

  3. Set up the PicoScope:

    • Access the secondary ignition setting on the PicoScope screen.
    • Choose the probe inverted option.
    • Set the time scale to 10 milliseconds.

  4. Start the vehicle:

    • Start the car to initiate the secondary ignition system.

  5. Analyze the waveform:

    • With the ignition coil extension leads in place, the PicoScope will capture the secondary ignition pattern from one of the coil packs.
    • Use the PicoScope to analyze and interpret the waveform, allowing you to understand how the system is functioning.

  6. Note-taking and waveform library:

    • Take notes on key details such as the waveform pattern, burn time, and coil insulation.
    • Save these details in the waveform library for future reference and comparison.

Key Points and Details

  • Ignition coil extension leads are essential for testing secondary ignition coil voltage in multi-coil pack setups.
  • These leads enable access to individual spark plugs within the coil pack for accurate measurements.
  • The extension leads are particularly useful when breakout leads cannot be used due to insulation limitations.
  • By using the PicoScope and ignition pick-up, a more reliable reading of the secondary ignition pattern can be obtained.
  • Adjusting the time scale to 10 milliseconds allows for a clearer visualization of the waveform.

Conclusion

Utilizing ignition coil extension leads when testing the secondary ignition coil voltage is a crucial step in diagnosing and analyzing the performance of a multi-coil pack system. By following the steps outlined in this article and using the PicoScope and ignition pick-up, you will be able to effectively capture and interpret the waveform pattern, burn time, and coil insulation. This information can be valuable in troubleshooting any issues with the ignition system and improving overall performance. Remember to save these details in the waveform library for future reference and comparison. Thank you for reading this article and we hope you found it informative.