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
atmospheric pressure sensor installed on the
AFS, senses the atmospheric pressure and converts it into a voltage which is sent to the ECU. The ECU uses this signal to compute the altitude at which the vehicle is operating and adjusts the air/fuel ratio and ignition timing to improve driveability at high altitude.