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Home >> Ford >> 1994 >> Taurus V6-232 3.8L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Pinpoint Tests >> KN - Fuel Pressure Regulator Control Solenoid >> KN8 - Check FPRC Circuit Continuity
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KN8 - 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 13 (test pin 32 for CD4E and California manual transmission) at the breakout box and FPRC circuit at solenoid vehicle harness connector.

- Is resistance less and 5.0 ohms?

Yes -- Go to KN9. KN9 - 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)
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