Check spark at the coil is ok .you need a spark plug tester.then remove the leads plug in the tester. turn the engine over are you getting a spark if no .check the distributor cap .clean the contacts,check the bush in the center is ok. check and clean your rotor arm..now check the plugs ,smell them if smell of fuel and no spark change them.
SOURCE: 2009 saturn aura random misfire cyl 1 codes p0014,p0201,p0300
okay there are a few things that need to be checked here, seems like you were testing the wrong things, lets start with the po300, this code is for a misfire a random one which means any cylinder at a certain time has misfired which is due to the next two codes listed, the po014 which is the exhasut camshaft postion sensor system performance and the po201 injecotr control circuit for cylinder #1.
Have the injector ohm ed and the connection and wiring checked, this problem may be a bad injector or wiring to cyl # 1 and the cam sensor needs to be tested also on bank 1exhaust side. good day
SOURCE: 2005 saturn ion2 missfire problems
Stop wasting time at auto zone and throwing parts at it. Find a good repair shop and have it properly diagnosed and repaired.
Have you ever had a spark plug fail in your lifetime?Probablely never will.
Do you know how to test a coil pack? Did you test it?
A simple check of vacuum hoses or a loose air filter cover,loose gas cap an so on ,could be your part of your problems. e.g. something simple.
I would recommend spending the big bucks and getting the shop manuals,for all your vehicles,something no one wants to do. Then study your vehicles systems and eventually ,you may be doing your own repairs.
I would be suspicious of the module as well. What you can do is pull that whole assemble. Have somebody crank the engine over while you check for spark at each post. If there is no spark out of two of the posts than the module is bad.
I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa
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