2017 Mitsubishi P0087: What It Means & Is It Safe to Drive?
P0087 on the 2017 Mitsubishi: Fuel Rail/System Pressure – Too Low. Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
What this code means
The actual fuel rail pressure is lower than the PCM commanded. On direct-injection engines the high-pressure fuel pump is the primary suspect; on port injection engines the lift pump or filter is most common.
Common causes on the 2017 Mitsubishi
- Failing high-pressure fuel pump (direct injection engines)
- Weak low-pressure lift pump
- Clogged or restricted fuel filter
- Leaking fuel pressure regulator
- Restricted fuel supply line
Symptoms
- Check Engine Light
- Hard starting, especially when hot
- Stalling or stumbling under load or acceleration
- Rough idle
Typical fixes
- Replace high-pressure fuel pump (GDI engines)
- Replace low-pressure (in-tank) fuel pump
- Replace fuel filter
- Inspect and replace fuel pressure regulator
Repair cost range
For a 2017 Mitsubishi, repairs for P0087 typically fall between $200 and $1200, depending on the root cause and labor rates in your area.
Known issues on Mitsubishi
Mitsubishi Evo X 4B11T P0087 low fuel pressure can indicate a failing HPFP (high-pressure fuel pump) on this GDI engine. The 4B11T's HPFP is driven by the intake cam and can wear the cam lobe—check cam lobe condition alongside fuel pressure testing.
Most commonly affected models