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)

Or, hide this message: temporarily or permanently

EGR Valve Position Sensor: Description and Operation

Exhaust Gas Recirculation Valve Control and Valve Position Sensor


Exhaust Gas Recirculation Valve Control And Valve Position Sensor:






The Exhaust Gas Recirculation Valve Control controls the amount of exhaust gases recirculated back to the intake. It is a proportional solenoid with a built-in position sensor. The Valve Position Sensor is needed to give the control circuit feedback to achieve desired travel position. The Exhaust Gas Recirculation Valve Position Sensor is a variable resistance pintle position sensor that makes position measurements of the exhaust gas recirculation valve control actuator.