I have a 1993 Mazda B2200 fuel injected truck, it's making a lot of smoke, the truck sat for a month or so, when I started it up it smoke like crazy, the smoke is white and does not smell sweet. There is no oil in the antifreeze and no antifreeze in the oil, the compression test was done and all cylinders are the same about 160, I found out that injector 2 &4 will sent constant fuel as soon as the ignition switch is on, the rail and injectors where replace and that changed not, I check the vacumm and it is fine, has someone got an ideal of what is wrong. I would appreciate if someone has an electrical diagram for the engine. Thanks in advance for any help.

Well for all that are interested to know, I found the solution to the white smoke, I replaced the computer and it all run find now (of course after all the condensation is gone from the exhaust system), I also replaced the injectors because they were not so good anymore.