If it is white smoke, you probably have a blown headgasket as coolant is leaking in the heads ans being vaporized. If it is black smoke, then you have worn rings and oil is leaking into the chamber and is being burnt.
and if its blue it could be the valve steam seals you will need an air compressor a compression tester valve spring removing tool and a little bit of elbow grease
This engine is running extremely rich. This can be caused by many things. Have it repaired ASAP. Serious engine damage will occur if you continue to drive.
Time for a tune up.
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Car maintenance is very important for a smooth ride. When there is white smoke coming out of the exhaust, it is usually an indication of water in the engine.
Black smoke usually indicates an overly rich fuel/air mixture. In other words the engine is getting too much fuel or it is not being burned properly. Blue smoke is oil burning. White smoke is coolant in the combustion chamber.
Engine Control Module.............
i have never seen one.
Shut the car off and get out. Something is broken and if its producing smoke, it could catch on fire.
Disconnect the battery for a few seconds, then reconnect.
check for cracked heads, or blown head gasket.
Check the tailpipe for contact with the body. A loose hanger that holds the exhaust up may be sagging. The movement of the motor starting will jar the exhaust system.