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

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Manifold Pressure/Vacuum Sensor: Testing and Inspection

Digifant ECU:





The MAP sensor is inside the Digifant control unit and cannot be tested or replaced separately. Only the vacuum signal from the vacuum hose can be checked. If vacuum hose is OK, but code 2222 is stored, the Digifant control unit and MAP sensor are faulty and must be replaced as a unit.