Engine-Codes - Generic - P0088

P0088 Code - Fuel Rail/System Pressure Too High

- Code Popularity: 49,240 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P0088?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Fuel Rail Pressure (FRP) Sensor
  • Fuel Rail Pressure (FRP) Sensor harness is open or shorted
  • Fuel Rail Pressure (FRP) Sensor circuit poor electrical connection
  • Fuel pressure control valve stuck closed

Code Tech Notes

6.4L HIGH PRESSURE FUEL PUMP (P0088)




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How to Fix the DTC P0088?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0088 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P0088 Code Mean?

The Powertrain Control Module (PCM) regulates the fuel rail pressure by controlling the fuel volume control valve and fuel pressure control valve. When the Powertrain Control Module is no longer capable of maintaining the fuel pressure the Diagnostic Trouble Code (DTC) is set.

P0088 Code - Fuel Rail/System Pressure Too High

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Code P0088 Information for Specific Makes

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