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)

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Federal

EGR Function Sensor Testing:

NOTE: Make this check with engine cold.

1. Unplug sensor connector and measure resistance:

RESISTANCE @ 68°F (20°C): 182 - 336K Ohms

2. If not as specified, replace EGR valve assembly.