86 park Ave Won't Start

I have a 1986 Buick Park Ave 3.8L It turns over but it won't Start. I have fuel coming up to the injectors, I also checked for spark and I also have spark in every cylinder. No codes came up on the code scan. Could the timing chain jumped a tooth on the sprocket or could the timing sensor be gone. Is there any way of checking both of those. The car only has

Thanks Mike