My check engine light came on so I have changed the oil, fuel injectors, spark plus and oil filter. Still on. Two weeks ago my trailblazer(JustBlaze) wouldn't start so I got a jump. Took him to Auto Zone to get a battery testing and charge. Was told it was good and only took an hour to fully charge. Cool. Then a week ago I had left my cell phone charger plugged in and I needed another jump. Cut off while I was driving. Started right back up then started to over heat. So I changed the thermostat. Now the battery gauge is going down and the oil and temperature gauges are going up. My Engine light, ABS and Brake lights are on. ALL THE TIME. WTF is going on? Tell me something PLEASE!