Check Engine Light Quandary Car Runs Perfectly, But Why the Warning?

Low oil pressure is a common cause of a check engine light turning on, and it can seriously interfere with your car's performance. The Check Engine light means the engine management computer has detected a fault and recorder a trouble code. It could be just a fluke, or a sensor going bad ... If it's for the camshaft intake sensor then more than likely that sensor is on it's last legs and probably should be replaced. It will work fine ... It seems like if it's not bad chains it could be the Crank Position sensor, which would be odd because the car starts and idles fine. Another outside possibility, but since the car is running well it is not very likely, is a bad fuel pump that would produce low fuel pressure ... The car runs fine but these lights won't go out, even when I press the VSC button. 2010 Toyota Corolla. -. Maintenance & Repair. Why my check ... Usually, when the check engine light is flashing and the car is sputtering and shaking, that means you're dealing with an engine misfire. If it's 'on' steadily, it could be serious, but likely not. I've had mine come on twice in 5k miles. If you let your car idle for more than 10 ... You may think that there is still a problem with the car after the repair, but it's because the light needs time to reset. Got a bubble in your fuel line? Turned a corner too hard with a near-empty tank? Started the car with the fuel cap off? Went through a car wash? These codes are ...