AutoCodes – Generic – P0087

P0087 Code - Fuel Rail/System Pressure Too Low

Quick Answer

This fault code is stored in the Engine Control Module (ECM) when the fuel pressure is not as expected. Common causes include Faulty fuel pressure sensor, Faulty fuel pump, Fuel 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
P0087 indicates Fuel Rail/System Pressure Too Low.
Common causes
Common causes include Faulty fuel pressure sensor, Faulty fuel pump, Fuel 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 62,884
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Jul 15, 2022
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Code P0087 Description

This fault code is stored in the Engine Control Module (ECM) when the fuel pressure is not as expected. Normally manufacturers will support data parameters for actual and desired fuel pressure. When there is a conflict the Engine Control Module stores a fault code.
A number of issues may cause this fault code to be set such as a faulty fuel rail pressure sensor, a mechanical fault with the inlet metering valve or rail pressure control solenoid could cause the valve to become stuck. An electrical fault such as an open circuit in the inlet metering valve or fuel pressure control solenoid on a system with a normally closed valve will also cause this situation. A short circuit on the control wire of a normally open inlet metering valve will also cause this fault.
A fault in the fuel injector return system causes the fuel pressure to be lower than expected. This causes fuel from the high-pressure circuit to be leaked back to the low-pressure circuit. A faulty maximum pressure relief valve will also cause this situation.
The high-pressure pump should also be tested to ensure it is capable of delivering the required volume of fuel.
OBDII Code P0087 - Fuel Rail/System Pressure Too Low - AutoCodes.com
P0087 Code - Fuel Rail/System Pressure Too Low

What are the Possible Causes of the DTC P0087?

  • Faulty fuel pressure sensor
  • Faulty fuel pump
  • Fuel pressure sensor harness is open or shorted
  • Fuel pressure sensor electrical circuit poor connection
  • Blocked fuel filter
  • Fuel line restricted
  • Faulty fuel pressure regulator

How to Fix the DTC P0087?

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 P0087 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 P0087 code?

Need more information on how to fix the P0087 code? Get Access to Factory Service Manuals

Need Help with the 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 P0087 Code

1. What are the common symptoms of OBDII code P0087 (Fuel Rail/System Pressure Too Low)?

- Common symptoms include hard starting, rough idling, lack of power, engine stalling, and illuminated check engine light.

2. What are the possible causes of OBDII code P0087?

- The code P0087 can be triggered by issues such as a faulty fuel pressure regulator, clogged fuel filter, weak fuel pump, fuel line leaks, or a problem with the fuel pressure sensor.

3. How can I diagnose the cause of OBDII code P0087?

- Diagnosing the issue involves checking the fuel pressure using a gauge, inspecting the fuel lines for leaks, testing the fuel pressure regulator, and examining the fuel pump for proper operation.

4. What are the repair options for correcting OBDII code P0087?

- Repair options may include replacing the fuel pressure regulator, cleaning or replacing the fuel filter, repairing any fuel line leaks, testing and potentially replacing the fuel pump, or addressing issues with the fuel pressure sensor.

5. Can a clogged fuel filter cause OBDII code P0087?

- Yes, a clogged fuel filter can restrict fuel flow, leading to inadequate fuel pressure in the system and triggering code P0087.

6. Is it safe to continue driving with OBDII code P0087 present?

- It is not recommended to continue driving with code P0087 active, as it can lead to engine performance issues and potential damage to components over time.

7. How important is it to address OBDII code P0087 promptly?

- It is essential to address code P0087 promptly to ensure proper engine performance, fuel efficiency, and to prevent further damage to the fuel system components.

8. Can extreme weather conditions contribute to triggering OBDII code P0087?

- Yes, extreme temperatures can affect fuel pressure regulation and contribute to triggering code P0087, especially if the vehicle's fuel system is already compromised.

9. How do I reset OBDII code P0087 after making necessary repairs?

- After making the required repairs to resolve code P0087, the code can be cleared using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes to reset the system.

10. Will OBDII code P0087 cause a significant decrease in fuel efficiency?

- Yes, code P0087 can lead to decreased fuel efficiency due to inadequate fuel pressure affecting the combustion process in the engine.

Discuss the causes and fixes for P0087 OBDII Code

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