Threw that code tonight, changed the fuel filter, runs great now. but my question is, it got cold here in south eastern pa over the past week. i use total power fuel addative, i havent put it in the tank for several weeks until last sunday. when i took off the filter, noticed a large amount of algae. could it be that the total power broke the algae off the sides of the fuel tank and it just now caused my filter to clog? or should i drain my tank?