What to Do When the Malfunction Light Comes On After Adding 92 Gasoline?

[McConnor]

If the malfunction light comes on after adding 92 gasoline, it indicates a problem with the gasoline quality. It is recommended to promptly drive the car to a repair shop or a 4S store for inspection and treatment, otherwise it may affect the normal operation of the vehicle. Below are the reasons why the malfunction light may come on after refueling: 1. The air filter is too dirty, causing the malfunction light to come on after refueling. A dirty air filter leads the oxygen sensor to determine insufficient air intake, while the octane number of the new fuel changes. During the combustion process, the air-fuel ratio undergoes significant changes. The ECU detects abnormal ignition timing during operation, triggering the engine malfunction light. 2. The gasoline used does not meet the engine's fuel standards. While changing the fuel may not cause immediate issues with the car or engine, it can increase fuel consumption. If the added gasoline is contaminated, it may affect the fuel system's flow or even clog it. In such cases, replacing the air filter won't resolve the issue, and an inspection at a 4S store is necessary.