P1211 – Fuel Pressure Too Low
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Symptoms
- Hard starting
- Hesitation on acceleration
- Loss of power
- Lean condition
- Check engine light
Causes
- Weak fuel pump
- Clogged fuel filter
- Fuel line restriction
- Leaking lines
- Pressure regulator fault
Diagnosis
- Measure fuel pressure
- Inspect fuel filter
- Check pump current draw
- Inspect lines for kinks
- Scan fuel trims
Repair
- Replace fuel pump
- Replace fuel filter
- Repair lines
- Replace regulator
- Clean fuel system