Fault code P0265 – a step-by-step guide to diagnosing and fixing it

The meaning of error code P0265 – Cylinder 2 Injector Circuit High

P0265: Causes, signs and repairs

Error code P0265 is displayed and the check engine light is on - what does this mean?

The DTC P0265 is recognized by the OBD/EOBD system when a problem is detected with the fuel injector of the second cylinder. This fault code indicates a malfunction in the fuel injection system, which can lead to uneven engine running and reduced performance.

What causes can this error code have?

Defective injection valve cylinder 2
Damaged wiring to the injector
Corroded or loose plug connections
Defective fuel pump or low fuel pressure
Clogged fuel filter
Faulty engine control unit (ECU)
Short circuit or interruption in the circuit
Dirty or clogged injection nozzle

What symptoms occur in parallel with fault code P0265?

Engine unsteadiness: Uneven idling and vibrations
Loss of power: Reduced engine power, especially during acceleration
Increased fuel consumption: Poor fuel efficiency
Starting problems: Difficulty starting the engine
Jerky engine: Especially when idling or at low engine speeds
Exhaust odor: Unburned fuel in the exhaust gas

How can I fix the problem with error code P0265?

Repairing trouble code P0265 requires a systematic diagnosis of the injection system.
Replacement of the defective cylinder 2 injector with a new or reconditioned part
Repair or replacement of damaged cables and plug connections to the injector
Cleaning the fuel system and replacing the fuel filter
Checking and repairing the fuel pump in the event of insufficient pressure
Professional cleaning or replacement of clogged injection nozzles
Diagnosis and repair of the engine control unit in the event of ECU faults
Complete electrical check of the injection system with multimeter

FAQ - Frequently asked questions about DTC P0265

Can I continue driving with error code P0265?

Short distances are possible, but fault code P0265 should be rectified promptly. Driving longer distances can lead to engine damage and increased fuel consumption.

How much does it cost to repair fault code P0265?

The repair costs for EOBD code P0265 vary between 150-800 euros, depending on the cause. A new injection valve costs around 200-400 euros, while a fuel system cleaning is cheaper.

How do I recognize a defective fuel injector with code P0265?

This DTC typically results in engine unsteadiness, loss of power and increased fuel consumption. A professional OBD diagnosis can clearly identify the defective valve.

Can fault code P0265 be caused by bad fuel?

Yes, contaminated or low-quality fuel can clog the injection nozzles and trigger trouble code P0265. Regular fuel system cleaning helps to prevent this.

Is fault code P0265 the same for all manufacturers?

OBD code P0265 is standardized, but the specific repair procedures may vary depending on the vehicle manufacturer. Manufacturer-specific diagnostic devices provide additional information.

How long does it take to repair fault code P0265?

Fault code P0265 takes 1-4 hours to repair, depending on the cause. A simple injector replacement is quicker than a complete fuel system diagnosis.

Vehicles in which fault code P0265 occurs most frequently

Fault code P0265 is a standardized EOBD code for problems with the cylinder 2 injector and can occur in various vehicle brands, but is most common in the following vehicles:

BMW: 3 Series, 5 Series, X3, X5 (2000-2015)
Mercedes-Benz: C-Class, E-Class, ML-Class, Sprinter (1998-2012)
Volkswagen: Golf, Passat, Touran, Tiguan (2003-2016)
Audi: A3, A4, A6, Q5 (2004-2014)
Ford: Focus, Mondeo, Galaxy, Transit (2001-2013)
Opel: Astra, Vectra, Zafira, Insignia (2002-2015)
Peugeot: 307, 308, 407, 508, Partner (2000-2014)
Citroën: C4, C5, Berlingo, Xsara Picasso (2001-2013)
Renault: Mégane, Laguna, Scénic, Espace (1999-2012)
Fiat: Punto, Bravo, Stilo, Doblo (2002-2016)

If the code P0265 occurs in your vehicle, you should first have a professional OBD diagnosis carried out. Many garages offer a free error code readout to determine the exact cause. In modern vehicles with complex injection systems, professional repair is particularly important in order to avoid consequential damage.

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