Unraveling the Enigma Check Engine Light On, Car Runs Smoothly?

Spark plug/ignition coil issues: Faulty spark plugs or coils can cause engine misfires, rough idling, and trigger the "check engine" dashboard light. The ... Many of us have had experiences where the check engine light had come on, but the problem was just an improperly-sealed gas cap. Stop the car, remove the cap, ... The check engine light is constantly on: Your vehicle's onboard diagnostic system has determined something is wrong and needs to be fixed. Although your vehicle ... Exhaust leaks ahead of the fueling O2 sensor will make the exhaust stream read "lean" so the ECU will add fuel. It would be interesting to see ... I took it to 2 auto parts stores for them to scan the code but neither of them could find anything. The car runs fine. Is it safe to ignore ... Low oil pressure is a common cause of a check engine light turning on, and it can seriously interfere with your car's performance. Driving with the BMW check engine light on is a bad idea. Even if your car is running fine, the light indicates a potential issue that could ... 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. ... Engine management light on but car has no issues and drives fine ... Most check engine lights that don't change how the car feels or drives ... A dead battery may not only cause the battery light on your car's front panel to turn on, but your check engine light as well. The car ...