P0087 on Renault: How to Diagnose & Fix
Fuel Rail/System Pressure - Too Low
1 Renault model · 1 documented issue · 1 critical · $350-$4,500 repair
P0087 on Renault by model: symptoms, diagnosis and fix
The 1.5 dCi K9K diesel suffers well-documented fuel injector failures, often triggered by injection pump wear or fuel contamination that sends metal debris through the common-rail system into the injectors. Honest John documented a 2007 Clio 1.5 dCi whose injection pump broke up and sent shards into the injectors, with a repair quote of over £3,600 plus VAT. Owners report sequential injector failures, 'injection fault' dash warnings, power loss, and no-start conditions; once the rail is contaminated, the pump, rail, and all four injectors typically need replacing together.
Common Symptoms
- 'Injection fault' warning on the dashboard
- Loss of power under acceleration
- Hard starting or complete no-start
- Engine shuddering or rough running at idle
- Glow plug warning light staying on
How to Fix
Replace the failed injector(s) with units coded to the ECU and renew the fuel filter; some injectors can be professionally refurbished. If the high-pressure pump has shed debris, the accepted fix is replacing the pump, rail, and all four injectors and flushing the fuel system, otherwise contamination causes repeat failures.
Sources for this issue (3)
- ClioSport.net — 1.5 dCi not starting (injector issue?), 2006 Clio III with INJECTOR FAULT warning, P0089 fuel pressure faultforum
- ScannerDanner Forum — 2006 Renault Clio 1.5dCi K9K injector fault, no-start after pump/injectors/rail replacementforum
- RAC Forum — Injection Fault alarm + STOP light (Clio Mk3 1.5 dCi 85, 56 plate)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 Renault?
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 Renault it is documented across 1 model: Clio.
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 Renault?
Published repair estimates on Renault range from $350 to $4,500 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.