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
(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)
Or, hide this message:
temporarily or
permanently
Barometric Pressure Sensor: Description and Operation
The Barometric Pressure (BARO) Sensor is a semi-conductive diffusion type of sensor, and senses the altitude at which the vehicle is running. The BARO sensor is installed within the Air filter housing along with the
Air Flow Sensor. As the vehicle climbs in elevation the voltage return signals are used by the Control Unit in order to make precise adjustments to the fuel injector pulse width and to the ignition timing, thus improving driveability at high altitudes.