This code came up when I scanned my car...P0410 Secondary Air injection system fault. My car has been cold, only blows warm air, won't warm up past 1/4, instead of the normal 210....filled up the coolant...know what? Does the code have anything to do with being cold?

 

Excerpted from P0410 Explained:
A history DTC will clear if no fault conditions have been detected for 40 warm-up cycles. A warm-up cycle occurs when the coolant temperature has risen 22°C (40°F) from the startup coolant temperature and the engine coolant reaches a temperature that is more than 70°C (158°F) during the same ignition cycle.

The code will not clear if these conditions are not met, so yes, the engine temperature can be a contributing factor.