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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Sensor Inspection



EGR Temperature Sensor Test:






To test the EGR Temperature Sensor, located on the EGR valve, proceed as follows:

1. Place the EGR temperature Sensor in water and heat to 122°F (50°C).
2. Read the resistance value between terminals 1 and 2, resistance should be between 60 - 83 kohm.
3. Heat the water to boiling, 212°F (100°C).
4. Read the resistance value between terminals 1 and 2, resistance should be between 11 - 14 kohm.

If the EGR Temperature Sensor measures out of the specification range, replace the sensor.