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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Low Pressure Lock-Off (LPL)

The electric low pressure lock-off solenoid provides fuel shut-off prior to the low pressure regulator. The normally closed solenoid has a high temperature coil and is both UL and CGA approved. The LPL has a 1/4 in. diameter fuel orifice. The LPL is only commanded ON when engine cranking or running is detected.