I upgraded my 06wrx to a vf39 with all supporting mods, tbe, cobb, ic, fuel pump. Leave the mechanic, burning all the spilled coolant, but a CEL was on and cruise light flashing. Its cel po180 fuel temperature, circuit A sensor. What do you think this could be? My mechanic used all the stock stuff for the walbro pump, he says it fits fine and you dont need any of the wiring provided by walbro. Is this car performing the way it should, or should i expect more power once this cel is taken care of?