Bypass TVS at the vacuum advance control: how should it be entered in the EIS?

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Prepare for the California BAR Smog Technician Test. Review key topics with flashcards and multiple choice questions, each question includes hints and explanations. Get ready to ace your exam!

Multiple Choice

Bypass TVS at the vacuum advance control: how should it be entered in the EIS?

Explanation:
The key idea is that bypassing the vacuum-activated timing control changes how the ignition timing is managed, not the fuel system or exhaust/emissions hardware. The vacuum advance is part of the spark control system that adjusts when the plug fires based on engine load. By bypassing that control, you’re modifying how spark timing is commanded, so it belongs under Spark control as Modified in the EIS. It’s not a direct change to the base ignition timing setting, nor does it involve the emissions system or fuel delivery components.

The key idea is that bypassing the vacuum-activated timing control changes how the ignition timing is managed, not the fuel system or exhaust/emissions hardware. The vacuum advance is part of the spark control system that adjusts when the plug fires based on engine load. By bypassing that control, you’re modifying how spark timing is commanded, so it belongs under Spark control as Modified in the EIS. It’s not a direct change to the base ignition timing setting, nor does it involve the emissions system or fuel delivery components.

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