P1189 – Fuel Pressure Sensor Intermittent
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Symptoms
- Rough idle
- Hesitation
- Poor acceleration
- Hard starting
- Check engine light
Causes
- Faulty pressure sensor
- Loose connector
- Wiring issue
- Fuel pump issue
- ECU issue
Diagnosis
- Inspect wiring
- Test pressure sensor
- Check connectors
- Scan live data
- Inspect pump
Repair
- Replace pressure sensor
- Fix connectors
- Repair wiring
- Replace pump
- Update ECU