P0087 on Infiniti
Fuel Rail/System Pressure - Too Low
P0087 on Infiniti vehicles indicates fuel rail/system pressure - too low. Au7o has documented this code across 1 Infiniti model — most commonly on QX80. This code means the fuel rail or fuel system pressure has dropped below the level the engine's computer expects. The computer monitors a fuel pressure sensor and has seen pressure fall too low, meaning the engine isn't getting enough fuel — especially noticeable under acceleration or load. This is most common on direct-injection and diesel systems that run very high pressures. Symptoms include hard starting, stalling, hesitation, lack of power, and possible limp mode.
Common Causes of P0087
- •Clogged or dirty fuel filter
- •Weak or failing fuel pump (lift pump or high-pressure pump)
- •Faulty fuel pressure regulator or control valve
- •Restricted or leaking fuel lines
- •Faulty fuel pressure sensor
- •Air in the fuel system or running low on fuel
- •Worn high-pressure pump (direct injection/diesel)
P0087 on Infiniti by Model
Infiniti QX80(2 issues)
- Fuel Pressure Sensor Under-Torqued Causing Fuel Leak and Fire Risk (Recall 14V683000)2014-2015
Fuel pressure sensors were not sufficiently tightened during production. As the vehicle is driven, vibration and thermal cycling allow the under-torqued sensor to loosen further until fuel escapes past its seal. A fuel leak in the engine bay, next to hot exhaust components and ignition sources, is a vehicle fire risk. NHTSA campaign 14V683000 covers QX80 alongside 2012-2014 Nissan Juke, 2012-2013 M56 and QX56, and 2014-2015 Q70 V8 vehicles. The recall began January 25, 2015 and the remedy is simply re-torquing the sensors.
- Fuel Pump Impeller Swells and Binds Causing Engine Stall (Recall 21V373000)2020-2021
The impeller inside the fuel pump module can absorb fuel, swell, and bind against the pump housing. Once it binds the pump fails and fuel delivery stops, stalling the engine — potentially at speed and without warning. This is the same low-density impeller defect that ran through a large number of Nissan and Infiniti products of the period. NHTSA campaign 21V373000 covers 2020-2021 QX80 and Nissan Armada with V8 engines; owner letters were mailed February 4, 2022, and the campaign numbers are R21A3 for Infiniti and R21A2 for Nissan. The remedy is replacement of the fuel pump module, not a software change.
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What does P0087 mean on Infiniti?▼
P0087 stands for "Fuel Rail/System Pressure - Too Low." This code means the fuel rail or fuel system pressure has dropped below the level the engine's computer expects. The computer monitors a fuel pressure sensor and has seen pressure fall too low, meaning the engine isn't getting enough fuel — especially noticeable under acceleration or load. This is most common on direct-injection and diesel systems that run very high pressures. Symptoms include hard starting, stalling, hesitation, lack of power, and possible limp mode. On Infiniti specifically, this code is documented across 1 model.
What causes P0087 on Infiniti vehicles?▼
Common causes on Infiniti: Clogged or dirty fuel filter, Weak or failing fuel pump (lift pump or high-pressure pump), Faulty fuel pressure regulator or control valve, Restricted or leaking fuel lines, Faulty fuel pressure sensor. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0087 on a Infiniti?▼
Repair costs vary widely depending on the root cause and specific Infiniti model.
Which Infiniti models have P0087 documented?▼
Au7o has documented P0087 on 1 Infiniti model: QX80.