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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H3 - Check Systems Ability to Hold Fuel Pressure



- Pressurize fuel system per step H2.

- Visually look for fuel leaking at the injector O-ring, fuel pressure regulator, and the fuel lines to the fuel charging assembly. Service as necessary.

- Key "ON", engine "OFF".

- Does fuel pressure remain at specification for 60 seconds?

Yes -- For no starts: Go to H4. H4 - Fuel Delivery Test

For Service codes or other symptoms go to H6. H6 - Cylinder Balance Diagnostic Test Mode: SFI Engines

No -- Refer to Fuel Delivery and Air Induction/Testing and Inspection.