AutoCodesGeneric – P0088

P0088 Code - Fuel Rail/System Pressure Too High

Quick Answer

The Powertrain Control Module (PCM) regulates the fuel rail pressure by controlling the fuel volume control valve and fuel pressure control valve. Common causes include 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. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0088 indicates Fuel Rail/System Pressure Too High.
Common causes
Common causes include 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.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 51,127
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Sep 07, 2023
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Code P0088 Description

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.
OBDII Code P0088 - Fuel Rail/System Pressure Too High - AutoCodes.com
P0088 Code - Fuel Rail/System Pressure Too High

What are the Possible Causes of the DTC P0088?

  • 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

How to Fix the DTC P0088?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0088 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0088 code?

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Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0088 Code

No Frequently Asked Questions about P0088 Code found.

Discuss the causes and fixes for P0088 OBDII Code

  • I have a ldv maxis and this code has come up on a diagnostic test please could u tell me what it is

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