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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KN7 - Check FPRC Solenoid VPWR



- Key "OFF".

- Fuel Pressure Regulator Control (FPRC) solenoid disconnected.

- Key "ON", engine "OFF".

- Measure voltage between VPWR at FPRC solenoid vehicle harness connector and battery ground.

- Is voltage greater than 10.5 volts?

Yes -- Go to KN8. KN8 - Check FPRC Circuit Continuity

No -- Service open in VPWR harness circuit. Reconnect FPRC solenoid. Rerun quick test and/or verify elimination of drive symptom. Quick Test Appendix (Detailed Testing Instructions)