P0087 on Acura
Fuel Rail/System Pressure - Too Low
P0087 on Acura vehicles indicates fuel rail/system pressure - too low. Au7o has documented this code across 3 Acura models — most commonly on ILX, MDX, TLX. 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 Acura by Model
Acura ILX(1 issue)
- In-Tank Low-Pressure Fuel Pump Impeller Failure Causing Engine Stall2013-2022
The Denso-supplied in-tank fuel pump module fitted across virtually the entire ILX production run uses an impeller that was molded with insufficient density and inadequately dried. The impeller absorbs fuel, swells, and interferes with the pump body. The pump then fails to deliver pressure - typically presenting first as a long crank or a hard start, then progressing to an engine stall that can happen at road speed with no warning and no restart. The ILX coverage was expanded twice: an initial 2019-2020 campaign (21V215, itself an expansion of ) was later broadened to cover 2013-2023 ILX under 23V858, so this spans every powertrain the car was sold with - 2.0 automatic, 2.4 manual, hybrid, and 2.4 DCT alike.
Acura MDX(1 issue)
- Fuel Pump Impeller Deformation Causing Stall (NHTSA Recall 23V-858)2018-2020
Certain 2018-2020 MDX (J35Y5 3.5L V6) and MDX Sport Hybrid (3.0L V6 hybrid) units were built with low-density, improperly molded in-tank fuel pump impellers. Surface cracking from production solvent absorption causes the impeller to swell and seize against the pump body, leading to no-start or stall while driving. Honda issued NHTSA recall 23V-858 covering ~2.5 million Honda/Acura vehicles.
Acura TLX(1 issue)
- In-Tank Low-Pressure Fuel Pump Impeller Failure Causing Stall Without Warning (Recalls 19V060000, 21V215000, 23V858000)2015-2023
The Denso in-tank low-pressure fuel pump module used across the first-generation TLX fails, causing hesitation, hard starting and complete engine stall - often at speed or mid-turn. Two distinct defect mechanisms were recalled: particulates in fuel adhering to internal pump components and degrading pump output (19V060000, covering 2015-2019 TLX with the 3.5L V6), and a pump impeller that absorbs fuel, deforms and binds against the pump housing (21V215000 for 2019-2020, expanded by 23V858000 to 2013-2023 Honda/Acura vehicles including TLX). Owners report repeated stalls even after one recall repair, and a documented cascade in which a failed low-pressure pump is replaced but the high-pressure pump fails soon after because dealers replace only one component - producing P0087 low fuel rail pressure. Recall parts availability has been a recurring complaint, with owners waiting months.
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View P0087 across all makes →Frequently Asked Questions
What does P0087 mean on Acura?▼
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 Acura specifically, this code is documented across 3 models.
What causes P0087 on Acura vehicles?▼
Common causes on Acura: 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 Acura?▼
Repair costs vary widely depending on the root cause and specific Acura model.
Which Acura models have P0087 documented?▼
Au7o has documented P0087 on 3 Acura models: ILX, MDX, TLX.