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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EGR Backpressure Transducer: Testing and Inspection

1. Suck from sub-vacuum port side. There should be air leakage which gradually disappears. If leakage continues, replace valve.
2. Apply vacuum to side port and check for leaks by sucking on top port. If there is a leak, replace valve.