Isuzu Amigo 1998 does not start in the morning

Help to solve start problem.
Isuzu Friend of 4 cylinders Motor X 22 does not start in the morning the problem only gives it in the first start then all day starts very well and taken to two mechanics and two electricians and none found a solution.
Change fuel pump, change spark plugs, cables, starter engine, alternator, also change oxygen sensors, followñal sensor, aiming sensor, also change temperature sensor and cold start sensor, new battery, new catalyst, clean DGR valve, cleaning and replacement of valve IAC, injector revision, injector revision Well, compressions to 180 couples, I also change the return valve, fuel filter etc. ,,, the true or with all that turns on, and I no longer want to spend anyone any solve.