- Loose or damaged gas cap: A loose or damaged gas cap can cause the check engine light to come on. Make sure the gas cap is properly tightened and not cracked or damaged.
- Faulty oxygen sensor: The oxygen sensor monitors the amount of oxygen in the exhaust gas and helps the engine adjust the air-fuel mixture. A faulty oxygen sensor can cause the check engine light to come on.
- Catalytic converter issues: The catalytic converter helps to reduce emissions by converting harmful pollutants into less harmful substances. A faulty catalytic converter can cause the check engine light to come on.
- Spark plug or ignition coil problems: Faulty spark plugs or ignition coils can cause the engine to misfire, which can trigger the check engine light.
- Engine vacuum leaks: Vacuum leaks can cause the engine to run lean (too much air and not enough fuel) or rich (too much fuel and not enough air), which can cause the check engine light to come on.
If the check engine light is on in your 1998 Suzuki Esteem Wagon, it's important to have the vehicle inspected by a qualified mechanic to determine the cause and make the necessary repairs. Ignoring the check engine light can lead to more serious problems and costly repairs in the future.
