Operation CHARM: Car repair manuals for everyone.
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)

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Manifold Pressure/Vacuum Sensor: Service and Repair

WARNING: Perform this operation on a vehicle that has cooled down to prevent burns.

1. Disconnect 3-wire connector from the Manifold Absolute Sensor (MAP) located on the throttle body.
2. Move any vacuum lines, connectors, and switches that are obstructing the sensor.
3. Remove sensor from the throttle body.
4. Install new sensor and secure to throttle body.
5. Move back any vacuum lines, connectors, and switches that were moved during the removal procedure.
6. Connect the 3-wire connector to the MAP sensor.