The P0211 code indicates that the engine control module has detected an electrical malfunction in the fuel injector circuit for cylinder 11. This typically means the circuit is open or shorted, preventing the injector from firing correctly.
The internal solenoid of the cylinder 11 injector has failed, resulting in an open circuit or internal short.
Frayed, melted, or broken wires in the injector circuit causing a loss of continuity or a short to ground.
Moisture or debris in the injector electrical connector causing high resistance or a complete break in the circuit.
A failure in the power supply circuit that provides voltage to the injector bank.
A failure in the injector driver circuit within the engine control module, though this is the least likely cause.
No. P0211 is an electrical circuit code. A clogged injector is a mechanical failure and would typically trigger a misfire code (such as P0311) rather than a circuit code.
No. It is rare for the PCM to be the cause of a circuit code. You should thoroughly test the injector and the wiring harness before considering a module replacement.
Driving with a dead cylinder can cause engine vibration and may lead to catalyst damage due to unburnt fuel entering the exhaust system; it should be repaired promptly.