Fuel Rail Pressure Sensor Circuit Intermittent
The ECU detects intermittent signal dropouts on the fuel rail pressure sensor. Loose connector, chafed wiring or sensor failing under vibration/heat.
Affected components
- Fuel rail pressure sensor
- Sensor connector
Common causes
- High likelihood: Connector loose
- Medium likelihood: Wiring chafed
- Low likelihood: Connector with intermittent contact under vibration
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.