P0190 on Renault
Fuel Rail Pressure Sensor Circuit Malfunction
P0190 on Renault vehicles indicates fuel rail pressure sensor circuit malfunction. Au7o has documented this code across 1 Renault model — most commonly on Megane. 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. Typical repair costs on Renault range from $100 to $500, depending on the specific model and root cause.
Common Causes of P0190
- •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)
P0190 on Renault by Model
Renault Megane(1 issue)
- Injection System Fault Warning2003-2023
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.
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View P0190 across all makes →Frequently Asked Questions
What does P0190 mean on 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 specifically, this code is documented across 1 model.
What causes P0190 on Renault vehicles?▼
Common causes on Renault: 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. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0190 on a Renault?▼
Repair costs on Renault range from $100 to $500, depending on the specific model and root cause.
Which Renault models have P0190 documented?▼
Au7o has documented P0190 on 1 Renault model: Megane.