Bmw 318is injects too much that the spark plugs moistens

Good morning community I hope you have an excellent day I could help me solve a problem that I have with a BMW 318 IS Mod 96. It happens that it is injecting a lot of fuel, I ring the engine and rectify the most disturbing question I have is: It may be possible that you have exchanged the pachas of the censors of Sigual and camshaft and still the car turns on? Or I would simply ignore that I share your knowledge and experience thanks