P0190: Fuel Rail Pressure Sensor 'A' Circuit
Severity: high
What it means: There's a problem in the fuel rail pressure sensor circuit.
Safe to drive? Use caution. It can cause stalling or limp mode.
Common symptoms
- Hard start or no-start
- Stalling
- Reduced power
Likely causes, ranked
- Faulty fuel rail pressure sensorShop
- Wiring or connector faultDIY
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What it means: There's a problem in the fuel rail pressure sensor circuit.
Severity: High. Safe to drive? Use caution. It can cause stalling or limp mode.
DIY or shop?
Wiring checks are DIY. The sensor is often built into the rail.
Before you replace parts
- Read all stored codes and freeze-frame data. Fix misfire, fuel or sensor codes before chasing emissions codes.
- Check the simple things first: connectors, vacuum hoses, fluid levels and the gas cap.
- Clear the code only after a repair, then confirm it stays off after a few drives.
- Check your VIN for recalls and service bulletins.
Safety / mechanic note
Verify with a mechanic. This code can involve stalling, engine damage or loss of power. If the check-engine light is flashing, or the car stalls or runs badly, stop driving and have it inspected.
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