Operation CHARM: Car repair manuals for everyone.

KN7 - Check FPRC Circuit Continuity

- Key "OFF".

- Fuel Pressure Regulator Control (FPRC) solenoid disconnected.

- Disconnect Powertrain Control Module (PCM). Inspect for damaged or pushed out pins, corrosion, loose wires, etc. Service as necessary.

- Install breakout box, leave PCM disconnected.

- Measure resistance between test pin 32 at the breakout box and FPRC circuit at solenoid vehicle harness connector.

- Is resistance less and 5.0 ohms?

Yes -- Go to KN8. KN8 - Check FPRC Circuit For Short to Power and Ground

No -- Service open circuit. Remove breakout box. Reconnect all components. Rerun quick test and/or verify elimination of drive symptom. Quick Test Appendix (Detailed Testing Instructions)