Have the system checked for codes. That will lead you to the problem.
There are sensors all over the engine that can turn the check engine light on.There are sensors all over the engine that can turn the check engine light on.
If the check engine light it on a 2002 Hyundai Accent on one of the sensors is malfunctioning. The computer is acknowledging this and alerting the driver that there is a problem in the engine.
Your VW Beetle check engine light comes on when there is a problem with one of a number of sensors on the vehicle. Take the car to the dealership to have them determine the engine problem and reset the light.
The check engine light comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, a check engine light is lit when there is a problem in the emissions or somthing that is affecting the effectiveness of the emissions.
You can not reset your oxygen sensors. You can only replace them. To reset the check engine light you will have to get that done by a repair shop with a computor. If replacing the sensors does not repair the problem then check for a vacuum leak.
It could be a "slight" problem with the electronic sensors. If a "check engine" light is on, the computer has detected a problem with the sensors. You need to use a code scanner to detect the fault code.
Just because you had it serviced and had brake work will not necessarilly stop the engine check light from coming on. It could have a new or re-occuring problem so that is why the engine light is probably on. The engine has several sensors that it gets information from and if any one of them sensors has a problem it can turn the engine check light on. Go and have it scanned to find out what the code or source of the problem is.
Black smoke means the engine consumes too much gas - possible problem with fuel injection. Is your check engine light on? It could also be a problem with oxygen sensors.
The most common problem on "Engine light" on the dash board means it's time to change your O2 sensor. the "check engine" light is an indication that there is a problem with the computer controlled and or monitored emissions systems. oxygen sensors are just one thing that could be wrong when the light goes on. a tester is connected which tells the technician where the problem is.
Then you may want to have a mechanic check it out.
The check engine light comes on when the computer detects a problem and sets a code. You need to have it diagnosed with a scan tool. The loudness may be an exhaust leak. the o2 sensors will pick up the change of exhaust gases and set the Check engine light.
Try replacing your Oxygen sensors they are located on the catalytic converter. I had the same problem with my 94 Caprice and that turned out to be the problem.