Will not start after spark plug replacement

2001 SATURN L300
172,000 MILES • 6 CYL • 2WD • AUTOMATIC
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KGERSHESON
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I replaced the spark plugs which took a while on this model. The mechanic said there was a problem with either one of the coils on the coil pack or a plug. I replaced the plugs. One of the plug caps was difficult to come off but finally did. I put everything back together and now it will not start. I checked all of the fuses and everything looks good.
What should I do?
Aug 12, 2016 at 4:06 AM
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SATURNTECH9
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So how did it run before you replaced the plugs ? does it crank and not start or no crank start? Also have you checked the computer for codes?
Aug 12, 2016 at 4:33 AM
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KGERSHESON
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It ran okay before replacement. It just had a check engine light. The mechanic who is out of town said the codes said there was a problem with coil or plug. I am trying to get it smogged here in California, that is the reason I did the work. I have a small code reader and will check.
Aug 12, 2016 at 5:57 AM
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SATURNTECH9
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Please let me know about the exact code numbers not code descriptions it may have.
Aug 12, 2016 at 11:25 AM
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KGERSHESON
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I have a new small code reader. I connected it and it will not communicate with the car. It works with my other car. I am not able to get any codes. I only changed the plugs. After I changed the plugs I disconnected the battery and then reconnected. It cranks but doesn't start. Thank you for your help.
Aug 15, 2016 at 7:55 AM
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STRAILER
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Please check all the fuses using a test light, here is a guide to help you.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Also is the security light flashing?

Please let us know what you find.

Best, Ken

Aug 15, 2016 at 8:10 AM
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SATURNTECH9
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Are you sure the ecm is bolted up tight to the intake ?Also the connectors to the ecm are installed correctly with the bail fully closed?
Aug 15, 2016 at 10:50 AM
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