P2311 VOLKSWAGEN Ignition Coil Secondary Number 4 Circuit Condition

Possible causes

– Faulty spark plug or coil boot
– Faulty Ignition Coil 4
– Ignition Coil 4 harness is open or shorted
– Ignition Coil 4 circuit poor electrical connection

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– Engine may be running rough