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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


The MAP and Vacuum sensors are accessible through the engine compartment. The BARO sensor may be located either in the engine compartment or strapped to the ECM harness under the dash panel.
Other than checking for loose hoses and electrical connections, the only service required of these sensors is replacement, should diagnosis show any sensors to be faulty.