Empty antifreeze tank causes catalytic converter error code.
I have a 2003 Mitsubishi Eclipse GTS. It has approximately 227k miles. On two separate occasions the antifreeze tank has empty creating the error code. When I refill the tank the code goes away. I had a pressure test run but a leak was not found. So the antifreeze is probably burning off. It was suggested to me it could be a head gasket but there is no evidence of antifreeze in the oil. Has anyone else experienced this?