P1324 – Fuel Pressure Regulator Stuck Closed
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Symptoms
- Black smoke
- Poor fuel economy
- Rough idle
- Fuel smell
Causes
- Stuck regulator
- Blocked return line
- Contamination
- ECU control fault
Diagnosis
- Measure fuel pressure
- Check return line
- Inspect regulator
- Scan ECU
Repair
- Replace regulator
- Repair return line
- Clean fuel system