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So here is what happened. My niece's boyfriend has the exact same car as me but a coupe, not a sedan. He had stalling issues, so I located the issue by swapping different parts on our cars, turned out his coil pack was bad. So since I was not currently driving my car I loaned him my coil pack until he could buy his own. Well, he could never get enough money to buy one so I bought a new one and installed it into my car, and now my car has never ran since. I bought a new ICM, MAF, MAP, Battery, NOTHING has gotten it to crank. I pulled the plugs and coil pack and had my wife crank the car at night so I could look for spark and saw nothing, not a single spark. I checked all the relays and fuses and ground wires, car turns over but does not start. I have absolutely no idea how just swapping out a coil pack would make my car no longer functional? I hope someone out there has experienced this before and can tell me a direction to search in. I am about to lose my damn mind. LOL
 

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So I ended up tracing wires from the trunk (where the battery is located) to the fuse boxes (one on passenger side and one under the hood) with a multimeter to make sure voltage was getting to every fuse and tested every relay, everything checked out. I was stumped until ironically my father's car (98 Buick Regal LS) had a battery issue where it was just 1 volt down (11v) and his car acted like it had a half dead battery in it, with a jumpstart he was on his way. He had left something plugged into the cigarette lighter that did a slow drain on his battery. That got me to thinking, if 1 little volt did that to his car, maybe this so called new battery that was in my cobalt was defunct in someway? Even though I had it charged and tested and pass, I said what the hell, I have done pretty much everything else to this thing. In the end of all that work, that was the major malfunction, a bad so called 'good' battery.
 

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Silly question. But you said you bought a new ignition coil. You say it’s an ‘06 model with 2.2 engine. Did the new coil pack come with an ignition control module? I have seen them bad right out of the box! I used to sell auto parts so this was not really out of the realm of possibility. Just a thought that came to mind anyways. I would also look at the connector where the wiring harness plugs into. I’ve have actually seen these where the pins inside are screwed up. Either being bent and not allowing contact or being loose.
 
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