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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EGR Valve Position Sensor: Description and Operation

EGR Valve:

EVP Sensor:

The Exhaust Gas Recirculation Valve Position (EVP) sensor provides information to the Powertrain Control Module (PCM) reflecting the EGR valve position. The sensor has two purposes: It indicates the amount of exhaust gases flowing into the engine by monitoring the EGR valve movement, and it notifies the PCM of failure in the EGR valve.