P0087 on Infiniti: How to Diagnose & Fix
Fuel Rail/System Pressure - Too Low
1 Infiniti model · 2 documented issues · 2 critical
P0087 on Infiniti by model: symptoms, diagnosis and fix
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.
Common Symptoms
- Engine stalls while driving without warning
- Long crank or failure to restart when hot
- Hesitation or loss of power under load
- Whining or buzzing from the fuel tank area
- Check engine light with fuel pressure codes
How to Fix
Have the dealer replace the fuel pump module under recall R21A3 / NHTSA 21V373000, free of charge, and verify by VIN that it was actually performed on a used purchase. The failure mode gives some warning: a swelling impeller drags before it seizes, so hard hot starts, extended cranking, hesitation under load, and a whining fuel pump are the precursors to the stall. Do not let a shop replace an in-tank pump at your expense before checking recall eligibility — this is a covered repair on affected VINs. If the vehicle has already stalled and been recovered, mention that specifically, since the dealer will want to check for consequential damage.
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Open Infiniti dealer map in Google Maps ↗Call to confirm they service Infiniti vehicles and check your VIN, recall eligibility, parts availability, and appointment options.
Sources for this issue (1)
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.
Common Symptoms
- Fuel smell from the engine bay
- Visible fuel wetness or staining around the fuel rail
- Check engine light with fuel pressure or rail pressure codes
- Hard starting or rough running from lost rail pressure
How to Fix
Have the dealer re-torque the fuel pressure sensors under recall 14V683000, free of charge — this is a quick job, not a parts replacement. Independent of the recall, treat any fuel smell from the engine bay on this vehicle as urgent rather than a curiosity: stop driving it, and do not idle it in an attached garage. Look for wetness or a varnish-like stain around the fuel rail and the sensor boss. If the sensor has been loose long enough to damage its seal, re-torquing alone will not stop the leak and the sensor and seal need replacing.
Find a Infiniti dealer
Choose to share your location for this search, or enter an area below. Your search location is sent to Google to find dealers.
Open Infiniti dealer map in Google Maps ↗Call to confirm they service Infiniti vehicles and check your VIN, recall eligibility, parts availability, and appointment options.
Sources for this issue (1)
P0087 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0087 mean on a 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 it is documented across 1 model: QX80.
What are the most common causes of P0087?
The most common causes of P0087 are: 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). The specific cause varies by vehicle.
How much does it cost to fix P0087 on a Infiniti?
Repair costs vary widely with the root cause and Infiniti model; each issue on this page carries its own estimate where one is published.
Looking for P0087 on a different make?
View P0087 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.