Audi
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Secondary air injection (AIR) system - open circuit
Cause:
    Wiring open circuit, AIR relay

Ford
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Unable to Bleed Up Fuel Tank Vacuum Conditions
Cause:
    Cold startup, engine running at a stable cruise speed with the EVAP system enabled, then the PCM detected excessive fuel tank vacuum at off-idle speed.

Land Rover
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Evaporative emission (EVAP) pressure pump - low current
Cause:
    Wiring, pressure pump, ECM

Saab
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Evaporative emission (EVAP) pressure sensor, in fuel tank - signal too low when depressurised
Cause:
    Wiring, EVAP canister purge valve, EVAP system leak, EVAP pressure sensor

Volkswagen
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Secondary air injection (AIR) system - open circuit
Cause:
    Wiring open circuit, AIR relay