1992 Saturn SC1 black box?

1992 SATURN SC1
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AMANDA32481
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1992 Saturn SC1 4 cyl Two Wheel Drive Automatic

My car has a little black box, to the right of the engine. It has a crack in it, so when the car is running, it sends a spark from the box to a screw near my plugs. Now my car seems like it is trying to bog out, when I have it running. Also, it seems to be having a problem getting a start when leaving a stop or changing gears. Could this be caused by the spark draining power and do you know what the black box is called so I can get a new one and put it in? My uncle called it a distributor but the auto parts store said that this model car does not even have a distributor. Also, someone else told me that it was called a coil. Also, do you know of any sites that have diagrams of the components of my car so that I won't have this problem again? Thank you.
Apr 1, 2010 at 4:05 PM
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SATURNTECH9
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If ur talking about where ur wires go on opposite end of where ur spark plugs go on those are ur coils.and under the coils it's base is called a ignition module.let me know how it goes.
Apr 1, 2010 at 10:45 PM
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AMANDA32481
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I changed the ignition coil and all the wires, but it still seems to be hesitating changing gears, mainly first to second, (it is an automatic). It also blows out a puff of black smoke when you press hard on the gas. I'm just confused and everyone says something different. Any ideas?
Apr 2, 2010 at 5:41 PM
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SATURNTECH9
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https://www.2carpros.com/forum/automotive_pictures/416332_coolant_temp_sensor_19911995_3.jpg

as far as ur black smoke sounds like a bad coolant temp sensor a bad one will cause erratic idle dieing surging overheating all kinds of things and its pretty common for them to go bad.make sure the engine is cold u will lose coolant.make sure u inspect its connector if its corroded u will need to replace the connector.also make sure u get a brass tipped one the plastic tipped ones crack and leak into the connector.there only like 10 as far as ur hestation between gears could be a transmission problem even.are all the spark plug wires in the right order on the coil and the plugs like they were before?do u have any codes?let me know what u find.
Apr 2, 2010 at 10:44 PM