You "washed" your engine! What came over you? Why did it need washing?
So you now have water in all the engine covers over the plug wires,all over the distributors,all over the coils in fact everyting electrical.
If the cat is g;owing red you have unburnt gas going into it.
Start with drying out the engine, get some compressed air in there and try to remove as much water as possible, then get a hair dryer in there and continue drying with a little luck it may be enough to get the engine running correctly again.