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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)