P0264 Injector: signal or voltage too low (cylinder 2)
P0264 means: Injector: signal or voltage too low (cylinder 2). The injector sprays fuel into the cylinder. Drive gently and have the car checked soon. The most common repair costs about €45–90 in Estonia, depending on make and model. The most common cause: connector loose, damp or corroded.
What it means
The injector sprays fuel into the cylinder. The computer found a fault in the injector control or its fuel quantity. The signal voltage is too low. Usually a wire is broken, a connector is loose or a wire is shorted to ground.
What you may notice
- Engine light on
- The engine runs unevenly
- Less power
- Higher fuel consumption
What could be wrong
- 1Connector loose, damp or corroded · Wiring or connector repair €45–90
- 2Wire broken or shorted to ground · Wiring or connector repair €45–90
- 3Faulty injector · Injector replacement €200–400
- 4Engine computer fault (rare) · Control unit check and software €150–300
Repair difficulty: Moderate
What you can check yourself
First look at the connector and wiring: anything loose, melted or green with corrosion? Check the injector connectors. If the engine runs badly on one cylinder, don't drive far. Best left to a workshop. It needs a diagnostic tool and experience.
How we fix it
- We read the fault data on the diagnostic tool and check whether the fault is constant
- We measure the circuit's supply, ground and signal
- We repair the wire or replace the connector
- If the wiring is fine, we replace the injector
Standard SAE description: Cylinder 2 Injector Circuit Low