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)