DTC 16505

NOTE: The diagnostic trouble code "P0121/16505" is set at a coolant temperature of over 70°C (158°F), engine speed between 1500 RPM and 3500 RPM for longer than 2 seconds and an engine load over 66% (Mass Air Flow sensor signal) as soon as the sensor signal voltage is less than 0.96 volts (corresponds to a throttle opening less than 12°).