Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P0191FUEL RAIL PRESSURE SENSOR CIRCUIT PERFORMANCE
P0191-00Fuel Rail Pressure Sensor "A" Circuit Range/Performance
P0191FUEL RAIL PRESSURE SENSOR CIRCUIT PERFORMANCE
Manufacturer communications
106Original wording in English
BUICK, CHEVROLET, GMC
This document provides the technician with a diagnostic tip if the vehicle stalls and set diagnostic trouble code P0191 and may also set P0172. The diagnostic tip has the technician inspect the high pressure fuel pump body markings to confirm it is an original manufacture part. If it is not an original manufacture part, they sho…
AUDI
This bulletin provides information when there is a drive system fault/engine won't start; either no DTC, or DTC P0191, P0087.
GENESIS
Certain G70 (IK) vehicles equipped with the 2.0T-GDI engine may illuminate the Check Engine Light as a result of DTC P019100 (Fuel Rail Pressure Sensor Circuit Range/Performance). This bulletin provides instructions for updating the Engine Control Module (ECM).
GENESIS
Certain G70 (IK) vehicles equipped with the 2.0T-GDI engine may illuminate the Check Engine Light as a result of DTC P019100 (Fuel Rail Pressure Sensor Circuit Range/Performance).
Check vehicle applicability
563A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Fuel Rail Pressure Sensor Circuit Range/Performance
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.