Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la or
lemon-manuals.org.ua
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Barometric Pressure Sensor: Description and Operation
Fig. 43 Atmospheric Pressure (PA) Sensor And Voltage Output Chart:
The
PA sensor converts atmospheric pressure into an electrical signal and inputs that signal to the ECU. This signal is used as a reference signal by the ECU, and uses the difference between the PA sensor and the MAP sensor to more accurately calculate engine load.