Thread: Vacuum gauge
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Old 12-20-2007, 10:24 PM   #6 (permalink)
MetroMPG
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Just had a thought: if you're interested in tinkering, you could probably do this for free with a little investigating.

Your vehicle already has an electronic vacuum sensor. If you can locate it and tap into it with a digital (or analog) voltmeter, you could use that info.

The goal under cruising/accel (with most auto transmissions) is to keep whatever reading corresponds to the highest vacuum (lowest manifold pressure).
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