Discover the causes, symptoms, and fixes for OBD Code P0087 (Fuel Rail/System Pressure Too Low) in Skoda, Audi, and Volkswagen vehicles. Expert guide with 5 key headings to solve the issue fast.

1. What is OBD Code P0087 in VAG Vehicles?

OBD-II Code P0087 stands for “Fuel Rail/System Pressure – Too Low.” It is a common diagnostic trouble code (DTC) triggered when the fuel pressure in the fuel rail drops below the manufacturer’s specified threshold.

In Skoda, Audi, and Volkswagen models, this code often relates to fuel delivery problems, which can lead to poor performance, misfires, or even engine stalling.

2. Common Symptoms of Code P0087 in Skoda, Audi, and VW

When the P0087 code is triggered, you may experience:

Check Engine Light illuminated
Loss of power under acceleration
Engine hesitation or stalling
Poor fuel economy
Hard starting or no start

On high-performance engines like those in Audi S-Line or VW GTI, the issue might be more noticeable under load or boost.

3. Likely Causes of P0087 in Skoda, Audi & VW Vehicles

Faulty high-pressure fuel pump (HPFP)
Clogged or dirty fuel filter
Fuel pressure sensor failure
Leaking fuel lines or injectors
Low-quality or contaminated fuel
Failing in-tank fuel pump or relay

In TFSI engines (common in Audi and VW), the HPFP cam follower wear is a known weak point and can also trigger this code.

4. How to Diagnose OBD Code P0087 Properly

To diagnose this code effectively:

Step 1: Check fuel pressure using a diagnostic tool or fuel pressure gauge. Compare with OEM specs.
Step 2: Inspect fuel lines for leaks or restrictions.
Step 3: Scan for related codes (e.g., P0191, P0088).
Step 4: Test high-pressure and low-pressure fuel pumps.
Step 5: Inspect or replace the fuel filter.

A VCDS (VAG-COM Diagnostic System) is highly recommended for deeper diagnostics on VAG vehicles.

5. Repair Solutions for P0087 Code Fixes

Once diagnosed, the correct repair may include:

Replacing the high-pressure fuel pump (HPFP)
Installing a new fuel filter (especially if overdue)
Cleaning or replacing the fuel pressure sensor
Fixing any fuel line leaks or injector faults
Upgrading the cam follower in TFSI engines
Flushing the fuel system if contaminated

Always reset the code using a scan tool and test drive to ensure the issue is resolved.

Final Thoughts

The OBD Code P0087 in Skoda, Audi, and Volkswagen vehicles shouldn’t be ignored. Early diagnosis and proper repair can prevent serious engine issues. If you’re not comfortable troubleshooting fuel systems, it’s best to consult a VAG-certified technician.