P0190 on Renault: How to Diagnose & Fix
Fuel Rail Pressure Sensor Circuit Malfunction
1 Renault model · 1 documented issue · $100-$500 repair
P0190 on Renault by model: symptoms, diagnosis and fix
The Megane displays an "Injection Fault" warning on the dashboard, which can be triggered by numerous sensors and components. Common causes include the crankshaft position sensor, throttle body, and fuel pressure regulator.
Common Symptoms
- Injection fault warning
- Engine stalling
- Difficult starting
- Loss of power
How to Fix
Diagnose with Renault CLIP or compatible diagnostic tool to identify the specific fault code. Common fixes include crankshaft sensor replacement, throttle body cleaning, and fuel pressure regulator replacement.
Sources for this issue (1)
P0190 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 P0190 mean on a Renault?
P0190 stands for "Fuel Rail Pressure Sensor Circuit Malfunction." P0190 indicates a malfunction in the fuel rail pressure sensor circuit. This sensor measures the pressure of fuel in the rail (common on direct-injection and high-pressure systems) and reports it to the PCM, which uses it to control the fuel pump and injectors for precise fueling. The code sets when the sensor's signal is out of range, erratic, or electrically faulty. Symptoms can include hard starting, stalling, hesitation, reduced power, or the engine going into a reduced-power fail-safe mode. On Renault it is documented across 1 model: Megane.
What are the most common causes of P0190?
The most common causes of P0190 are: Faulty fuel rail pressure sensor, Damaged wiring or connector at the sensor, Corroded or loose connector terminals, Open, short, or poor ground in the sensor circuit, Reference voltage problem from the PCM, Actual fuel pressure problems (pump/regulator) confusing the sensor, Failed PCM input (rare). The specific cause varies by vehicle.
How much does it cost to fix P0190 on a Renault?
Published repair estimates on Renault range from $100 to $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.