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)

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With EVAP Service Port




1. Connect the [1][2]EVAP diagnostic cart J 41413 to the vehicle EVAP service port. Turn the four position switch to Purge.
2. Start the engine. Allow the engine to reach the operating temperature.
3. Open the throttle until the engine speed reaches 2000 RPM.
4. Note the H2O vacuum gauge on the [1][2]EVAP cart. The vacuum should read greater than 15 in H2O.
5. If the vacuum is less than 15 in H2O, perform a complete throttle body service including a cleaning of the purge ports. Proceed to step 1.
6. If the vacuum is greater than 15 in H2O, continue with the diagnostics.