AutoCodes – Honda – P0088 Honda

P0088 Honda Code - Fuel Rail Pressure Too High

Quick Answer

The Powertrain Control Module (PCM) controls fuel pressure delivered by the high-pressure fuel pump. Common causes include Faulty High-Pressure Fuel Pump, Faulty Fuel Rail Pressure Sensor, Fuel Rail Pressure Sensor harness is open or shorted. 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 Honda indicates Fuel Rail Pressure Too High.
Common causes: Common causes include Faulty High-Pressure Fuel Pump, Faulty Fuel Rail Pressure Sensor, Fuel Rail Pressure Sensor harness is open or shorted.
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 1,528

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 27, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0088 Honda Description

The Powertrain Control Module (PCM) controls fuel pressure delivered by the high-pressure fuel pump. If the actual fuel pressure deviates from the target fuel pressure for a set time, the PCM detects a malfunction. The Diagnostic Trouble Code (DTC) is also stored when the pressure relief valve is opened to protect the fuel hose when the fuel reaches abnormally high pressure.

OBDII Code P0088 Honda - Fuel Rail Pressure Too High - AutoCodes.com — P0088 Honda Code - Fuel Rail Pressure Too High

What does this mean?

What are the Possible Causes of the DTC P0088 Honda?

Faulty High-Pressure Fuel Pump
Faulty Fuel Rail Pressure Sensor
Fuel Rail Pressure Sensor harness is open or shorted
Fuel Rail Pressure Sensor circuit poor electrical connection

How to Fix the DTC P0088 Honda?

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0088 Honda 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 Honda code?

Need more information on how to fix the P0088 Honda code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0088 Honda code diagnosed by a professional: Find a repair shop in your area

Information for Specific Honda Models

P0088 2016 Honda CR-V — Fuel Rail Pressure Too High
P0088 2017 Honda CR-V — Fuel Rail Pressure Too High
P0088 2018 Honda CR-V — Fuel Rail Pressure Too High
P0088 2019 Honda CR-V — Fuel Rail Pressure Too High
P0088 2020 Honda CR-V — Fuel Rail Pressure Too High
P0088 2021 Honda CR-V — Fuel Rail Pressure Too High

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 Honda Code

1. What does the OBDII code P0088 mean on a Honda?

P0088 indicates that the fuel rail pressure is higher than the manufacturerâ€™s specified range, which can affect engine performance and fuel efficiency.

2. What are the common symptoms of code P0088 in a Honda?

Symptoms may include poor fuel economy, rough idling, difficulty starting, reduced engine power, and the Check Engine Light turning on.

3. What causes the P0088 code to appear in a Honda?

Common causes include a faulty fuel pressure regulator, a malfunctioning fuel pump, a clogged fuel return line, or a defective fuel rail pressure sensor.

4. Can I drive my Honda with a P0088 code?

Itâ€™s not recommended to drive with a P0088 code, as excessively high fuel pressure can damage the fuel injectors, catalytic converter, or other engine components.

5. How do I diagnose a P0088 code on a Honda?

Diagnosis typically involves checking the fuel pressure with a gauge, inspecting the fuel pressure regulator, testing the fuel pressure sensor, and examining the fuel system for clogs or leaks.

6. How can I fix the P0088 code in my Honda?

Repairs may include replacing the faulty fuel pressure regulator, fuel pump, or fuel rail pressure sensor, cleaning or replacing clogged fuel lines, or updating the engine control module (ECM) software if needed.

7. Can a dirty fuel filter cause a P0088 code on a Honda?

While rare, a severely clogged fuel filter can restrict fuel flow and cause irregular pressure readings, potentially triggering the P0088 code.

8. How much does it cost to fix the P0088 code on a Honda?

Repair costs vary depending on the cause, ranging from $100 for a sensor replacement to over $500 for a new fuel pump or regulator.

9. Will clearing the P0088 code with a scanner solve the problem?

Clearing the code without addressing the root cause will only temporarily erase it; the code will likely return until the issue is properly fixed.

10. Can a software update fix the P0088 code on my Honda?

In some cases, a software update for the engine control module (ECM) may resolve the issue, especially if the code is caused by incorrect fuel pressure thresholds.