Once in a while when i floor my TL towards higher RPS of second or third gear the check engine light will pop up and flash and either go away after a few seconds or will stay on for a day or two then go away and not come back up for a while. I plan on bringing it in but every time im about to it goes away. Any ideas? The car accelerates just fine and there aren't any weird noises or anything

 

i had the same problem and the check engine will start flashing, the codes where misfire on pistons, so i changed my sparkplugs and problem solved !!

 

ok perfect! ill do that then this week. any certain spark plug thats the best?

 

i used the stock ones NGK there is no need to used a performance spark plug. BTW how many miles does your car have?

 

i got it with 25,000 but now it has close to 80,000 loll i drive alotttt for school and shit. but never any problems! but yea so i guess ill just have the plugs swapped out this weekend then