Audi
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Knock control, cylinder 2 - control limit reached
Cause:
    Poor quality fuel, incorrect fuel, insecure engine component, KS incorrectly tightened/defective, shield wiring open circuit, poor connection

Honda
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Ignition control module (ICM) - combustion quality input signal
Cause:
    Wiring, ignition coil(s), ICM, ECM

Isuzu
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Ignition control module (ICM) - combustion quality input signal
Cause:
    Wiring, ignition coil(s), ICM, ECM

Volkswagen
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Knock control, cylinder 2 - control limit reached
Cause:
    Poor quality fuel, incorrect fuel, insecure engine component, KS incorrectly tightened/defective, shield wiring open circuit, poor connection