“FCS” Lamp Causes....

I was power washing my 456M at the self wash place and accidentally bought 11 minutes (a lot since I just ceramic coated it and only spray it down). So I spent probably 8 full minutes power blasting it all over, under, around, through the grill, under the car, through the back spoiler.....whatever.

Anyway, when I get back in and finally started it and the “FCS” lamp (Fuel Cooling System) came on for about 10 seconds and just went off (?) drove away and it stayed off.

My hope is that my aggressive spray job affected a temperature sensor (or something) but I am unfamiliar and HOPING an expensive repair is not on the horizon.

What’s the rumpus on the FCS system ?