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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!

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Manifold Pressure/Vacuum Sensor: Service and Repair


MAP sensors are located in the engine compartment. Exact location depends on model application. Besides checking hoses and electrical connections, the only service possible is unit replacement if sensor is diagnosed as being faulty. To prevent sensor damage, exercise care when disconnecting vacuum hose from sensor.