Why does my Infiniti check engine light keep coming on?
Fortunately AutoNation INFINITI Tustin is here to help you figure out what might be wrong, and what your next steps should be. Below we have highlighted the most common causes of a check engine light:
When does the Check Engine light come on?
The check engine light only comes on in certain conditions: If the check engine light is coming on intermittently, be sure to notice any changes in the performance of your vehicle when the light is on. If you do notice a difference, try driving your vehicle as little as possible until you can bring it in for service.
Why is my engine light on in my Alfa Romeo?
Faulty Oxygen Sensor: Due to long exposure to hot exhaust gas, your oxygen sensor might need replacing. The oxygen sensor provides vital air-fuel mixture information to the ECU. A faulty oxygen sensor can cause your vehicle’s computer to supply the engine with too much or too little fuel.
Why is the engine light on in my Jaguar?
An engine with too little fuel is at risk of total engine failure, and an engine with too much fuel will create excessive smoke and odor. Faulty Mass Air Flow Sensor: When exposed to dirty or particle-rich air, the Mass Air Flow (MAF) sensor could fail.
What to do when check engine light comes on in Infiniti?
No matter the situation, when the check engine light comes on in your INFINITI, we always suggest stopping by our service center so one of our knowledgeable technicians can properly diagnose and repair your vehicle. Our service technicians have the most up-to-date diagnostic equipment that can quickly read INFINITI OBD-II Trouble Codes.
The check engine light only comes on in certain conditions: If the check engine light is coming on intermittently, be sure to notice any changes in the performance of your vehicle when the light is on. If you do notice a difference, try driving your vehicle as little as possible until you can bring it in for service.
Faulty Oxygen Sensor: Due to long exposure to hot exhaust gas, your oxygen sensor might need replacing. The oxygen sensor provides vital air-fuel mixture information to the ECU. A faulty oxygen sensor can cause your vehicle’s computer to supply the engine with too much or too little fuel.
An engine with too little fuel is at risk of total engine failure, and an engine with too much fuel will create excessive smoke and odor. Faulty Mass Air Flow Sensor: When exposed to dirty or particle-rich air, the Mass Air Flow (MAF) sensor could fail.
What to do if service engine soon light does not go off?
If the light does not go off, try buying and installing a new gas cap. They cost less than $10 at your local car parts retailer. It is worth ruling out this common problem before proceeding to bring in the vehicle for an expensive service call.
The check engine light is coming up when the engine control unit or the transmission control unit has detected a fault in the engine or transmission system. If your Check engine light is ON, the easiest way to diagnose this problem is to always check your trouble code memory with an OBD2 scanner.