all of a sudden my car won't start
my 2006 altima was running with a little lag when I sped up the rev went higher then supposed to but then drops down where it's supposed to. I also noticed my check engine light turn on and off but the light was on for 2 days and never came back. when I checked they said it had something to do with the idle system so I thought no biggie all of a sudden my car won't start it sounds like it's trying I changed the starter my batterys good and just wanted to know what I could be I was suggested crank shaft sensor or cam shaft sensor I was even told a throttle body please help!!
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