P0087 on Hyundai: How to Diagnose & Fix
Fuel Rail/System Pressure - Too Low
2 Hyundai models · 2 documented issues · 1 critical
P0087 on Hyundai by model: symptoms, diagnosis and fix
The 2022-2023 Elantra N with the 2.0L Theta III turbocharged engine was recalled because the fuel control valve plunger in the high-pressure fuel pump can wear prematurely and let excess fuel into the pump, making the air/fuel mixture run rich and causing a reduction or loss of drive power at low speeds. On a 276 hp turbo car this is more than an inconvenience - losing power while pulling into or moving with traffic is a crash risk. Hyundai's recall report lists the warning signs as a check engine light, lack of power, rough idle and misfire. This is specific to the Elantra N's fuel system and is separate from the fuel pump module and level-sender failures seen on earlier Elantra generations.
Common Symptoms
- Check engine light on
- Lack of power or loss of drive power at low speeds
- Rough idle
- Engine misfire
How to Fix
Free recall remedy. Under NHTSA campaign 24V528000 dealers update the engine control software - which adds detection and protection logic - and replace the fuel pump assembly where necessary, at no charge. Verify the VIN at nhtsa.gov/recalls. If the car has already been stalling, insist that the pump be replaced rather than accepting the software flash alone, and ask for the fuel pressure test results. Do not keep driving a car that has stalled at speed.
Sources for this issue (3)
First-generation Velosters have two well-documented low-fuel-pressure failures that present identically. On 2013-2014 Turbos an internal restriction in the low-pressure fuel feed tube from the tank starves the high-pressure pump under load, setting P0087 (fuel rail/system pressure too low) and causing hesitation, misfire and stalling; Hyundai addressed it with Service Campaign 937 / TSB 15-01-023 (fuel tube inspection/replacement), which owners on velosterturbo.org documented having done at the dealer. Separately, the camshaft-driven high-pressure fuel pump itself wears and loses output (one owner measured 300 psi at idle against a 500 psi spec), producing the same P0087 with rough idle and stalling on both turbo and base 1.6 cars.
Common Symptoms
- Check engine light with P0087
- Hesitation or bogging under hard acceleration
- Rough idle and stalling
- Extended crank or no-start when hot
- Misfire codes accompanying P0087
How to Fix
Read fuel-rail pressure with a scan tool. Check first whether Campaign 937 was performed (2013-2014 Turbo): the low-pressure feed tube is replaced under the campaign at no charge. If rail pressure is low with a healthy in-tank pump and clean feed line, replace the high-pressure fuel pump and delivery tube (about $500-$900 at a shop; the pump alone is $250-$400). Rule out the in-tank low-pressure pump and its filter before condemning the HPFP.
Sources for this issue (5)
- Hyundai TSB 15-01-023 - Fuel Feed Tube Replacement (Service Campaign 937), 2013-14 Veloster 1.6L Turbo GDItsb
- VT Recall; Fuel line replacement info (velosterturbo.org)forum
- High Pressure Fuel Pump Failure (velosterturbo.org)forum
- Code p0087 (velosterturbo.org)forum
- 13 Veloster Base P0087 and High Pressure Fuel Pump Replacement (veloster.org)forum
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 Hyundai?
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 Hyundai it is documented across 2 models: Elantra, Veloster.
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 Hyundai?
Repair costs vary widely with the root cause and Hyundai 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 →Join 700+ subscribers following Au7o for vehicle insights and updates.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.