If the oil level is moderately low but the pressure is holding, the light might stay off, but this does not mean the situation is safe. The short answer is that it depends on the severity and the specific monitoring systems of the vehicle.
Fixing the Check Engine Light Triggered by Low Oil
Ignoring the check engine light because you believe it is "just low oil" is a gamble with the health of your engine. Using incorrect oil viscosity affecting pressure.
While the code P01 oil pressure sensor is common, the technician will also physically check the oil level and condition to determine if the issue is simply a low fill or a more complex problem such as a failing pump or a leak in the system. The cost of repairing the engine block or replacing the entire unit is astronomically higher than the cost of a simple oil top-off or a visit to a mechanic to check for leaks.
Low Oil Triggered Check Engine Light Fix
The Role of the Oil Pressure Sensor Modern engines rely on an oil pressure sensor to provide constant data to the vehicle's computer. If the oil level is so low that the pump is drawing air or struggling to maintain pressure, the sensor sends a signal to the engine control unit (ECU).
More About Will check engine light come on for low oil
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