1995 Toyota Camry

Thank u for your responds the engine I have is the 2.2 and the 4 cyl don't come with the cold start injector.I have change the coolant temp sensor I did the self diagnostic the code 22 came up before I changed the coolant temp sensor. The engine only has 79,000 miles on it when it do run it runs like new but for some reason when the temp change outdoors it is very hard to start and that's if it even starts, even when I spray starter fluid in it it still will not start I can't understand whats wrong.