Is It Safe to Drive With a P0087 Code?
Common Symptoms of a P0087 Fault
Rough idle
Hesitation and stumbling under acceleration
Misfires — may store P0300 alongside
Hard starting
Loss of power
EML on
Possible Causes of P0087
A P0087 code can be triggered by faults in several different vehicle systems. Identifying the specific root cause requires proper diagnostic equipment and live data analysis — not just reading the code itself.
Fuel Pump Weakness
The fuel pump is not delivering sufficient pressure — may be wearing out.
Fuel Filter Blockage
A blocked fuel filter restricting fuel flow.
Fuel Pressure Regulator Fault
The regulator is allowing pressure to drop below specification.
Fuel Pressure Sensor Fault
The sensor monitoring fuel rail pressure may be faulty.
Fuel Injector Leak
Leaking injectors reducing rail pressure.
Why we don't list the exact part: A P0087 code tells you what's happening but not why. Replacing parts based on the code alone without proper diagnosis is the most common way drivers waste money. A proper diagnosis identifies the exact cause first.
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P0087 and Your MOT
A stored P0087 fault code will cause your car to fail its MOT. The engine management light will be illuminated during the test, which is an automatic failure under current MOT testing standards. Even if the light clears temporarily, the code remains in the ECU memory and can be read by the tester's equipment.
Get the fault properly diagnosed and repaired first — then have the code cleared and confirm the light doesn't return before booking your test.