Fault code P0092 – a step-by-step guide to diagnosing and fixing it

Error code P0092 is displayed and the check engine light is on - what does this mean?

The OBD system has detected low fuel pressure in the fuel pressure regulator 1 control circuit. This DTC P0092 indicates that the engine control unit has registered a deviation from the normal fuel pressure range. The fault code can occur with various manufacturers and affects the engine's fuel supply system.

What causes can this fault code have?

• Defective fuel pump
• Clogged fuel filter
• Defective fuel pressure regulator
• Damaged fuel pressure sensor
• Leaking fuel lines
• Blocked fuel injectors
• Electrical problems in the fuel system
• Defective fuel pump relays
• Dirty fuel tank
• Loose or corroded plug connections

What symptoms occur in parallel with fault code P0092?

• Starting problems: The vehicle is difficult or impossible to start
• Loss of power: Significantly reduced engine power while driving
• Uneven idling: Engine runs unevenly at idle speed
• Jerking: Vehicle jerks when accelerating or at constant speed
• High fuel consumption: Noticeable increase in fuel consumption
• Stalling: Engine stalls while driving
• Poor throttle response: Delayed response when accelerating

How can the problem with error code P0092 be rectified?

• Repairing EOBD error code P0092 requires a systematic diagnosis of the fuel system.
• Carry out a fuel pressure measurement and replace the fuel pump if the pressure is too low
• Replace the fuel filter if it is clogged or dirty
• Check the fuel pressure regulator and replace if defective
• Test the fuel pressure sensor and replace the defective sensor
• Check fuel lines for leaks and repair damaged lines
• Clean the fuel injection nozzles or replace them if they are heavily blocked
• Check and repair electrical connections and cables in the fuel system
• Test fuel pump relay and replace defective relay
• Have the fuel tank cleaned if it is dirty