P0192
Fuel Rail Pressure Sensor Circuit Low Bank 1
Fuel system pressure
Generic OBD-II
High
What it means
P0192 means the fuel rail pressure sensor circuit on bank 1 is reading below its normal voltage range. This sensor reports fuel pressure so the ECM can control the pump and injection, so a faulty low signal can make the ECM misjudge pressure — leading to hard starting, stalling, rough running, or reduced power. Confirm whether it's a sensor fault or genuinely low pressure before replacing parts.
High
Can I keep driving? May be hard to start, stall, or run rough — on direct-injection and diesel engines a bad pressure signal can prevent proper running, so repair soon.
Common symptoms
What you'll notice
- Check-engine light on
- Hard starting or no-start
- Stalling
- Rough idle and hesitation
- Reduced power and acceleration
Common causes
Most likely first
- Faulty fuel rail pressure sensorLikely
- Short-to-ground or other wiring fault in the sensor circuitCommon
- Corroded or loose sensor connectorCommon
- Genuinely low fuel pressure being reported accuratelyLess often
- Less commonly, an ECM/PCM faultLess often
How to diagnose & fix
Work through it in order
- Scan and read freeze-frame data, then compare the live rail-pressure reading to a known-good mechanical gauge.
- Inspect the sensor wiring and connector for a short or corrosion.
- Verify actual fuel pressure to tell a sensor fault from a real pressure problem.
- Replace the fuel rail pressure sensor if it reads inaccurately, then clear and retest.
FAQ
Quick answers
Is it safe to drive with P0192?+
Not ideal. The engine may stall, be hard to start, or run poorly because the ECM can't trust the fuel-pressure reading. Repair it soon to avoid being stranded.
Can I just clear P0192?+
It returns until the sensor, wiring, or an actual low-pressure condition is fixed. Confirm real fuel pressure before replacing the sensor.
Related codes
Often seen with P0192
Read & clear P0192 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX