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Re: Vacuum below zero
Posted to Technical Theory Forum on 5/1/2020 6 Replies

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That's what the BARO PID is for.

Barometric pressure.

If BARO is 30 inHg and you have 20 inHg of "vacuum" in the intake, the absolute pressure in the intake is 10 inHg, which is what your MAP sen... Login to read more.

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