* The oxygen sensor may be faulty. The oxygen sensor monitors the amount of oxygen in the exhaust gas. If the sensor is faulty, it can send inaccurate signals to the engine control unit (ECU), which can cause the engine light to come on.
* The catalytic converter may not be properly installed. If the catalytic converter is not properly installed, it may not be able to clean the exhaust gas effectively. This can cause the engine light to come on.
* There may be another problem with the emissions system. If there is another problem with the emissions system, it can cause the engine light to come on. This could include problems with the fuel injection system, the ignition system, or the EGR valve.
To diagnose the problem, you will need to have your vehicle inspected by a qualified mechanic. The mechanic will be able to determine the cause of the problem and recommend the necessary repairs.
