P0087

Fuel Rail/System Pressure - Too Low Bank 1

Fuel delivery Generic OBD-II High

What it means

P0087 means fuel pressure in the rail or system is below what the ECM commands. Without enough pressure the injectors can't deliver the right amount of fuel, so the engine may be hard to start, stall, misfire, or lose power. The usual culprits are a weak fuel pump, a clogged filter, or a leaking pressure regulator — confirm with an actual pressure reading before replacing parts.

High

Can I keep driving? Limited — low fuel pressure causes hard starting, stalling, and power loss; drive as little as possible and expect it could leave you stranded.

Real-world scan data

Seen in

5,865

scans in the past year

Found in

0.9%

of scans

1.6%

of scans that found faults

Appears alongside · share of P0087 scans

P0089in 15.3% of scans

P0401in 14.3% of scans

P0683in 12.9% of scans

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Check-engine light on
Hard starting, long cranking, or a no-start
Stalling, hesitation, or misfire under load
Reduced power, especially on acceleration or hills

Common causes

Most likely first

Weak or failing fuel pump (or low-pressure lift pump) — most commonLikely
Clogged fuel filter or restricted fuel lineCommon
Faulty fuel pressure regulator leaking pressure offCommon
Failing high-pressure pump on direct-injection enginesLess often
Faulty fuel rail pressure sensor reporting low, or wiring faultLess often

How to diagnose & fix

Work through it in order

Read freeze-frame data and compare commanded versus actual fuel pressure to confirm it's genuinely low.
Check the fuel filter and inspect fuel lines for kinks, leaks, or restriction.
Measure actual fuel pressure with a gauge and compare to spec, both at key-on and under load.
Test the fuel pump's output and electrical supply; verify the pressure regulator holds pressure.
If pressure is correct but the code persists, suspect the rail pressure sensor or its wiring. Repair, clear, and re-test.

FAQ

Quick answers

Is it safe to drive with P0087?+

No — low fuel pressure can cause the engine to stall or refuse to start, potentially stranding you. Get it diagnosed before relying on the car.

Can I just clear P0087?+

It returns as soon as pressure drops again. This is a real fuel-delivery fault, not a nuisance code — it needs repair.

Read & clear P0087 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX