What Are the Reasons for the Engine Fault Display on the Car Screen?
2 Answers
Car screen displays engine fault due to: 1. Faults in water temperature, crankshaft position, air flow, intake temperature, or oxygen sensors; 2. Poor engine maintenance; 3. Poor fuel quality; 4. Faults in spark plugs, ignition coils, or fuel pump; 5. Dirty air filter. Solutions for engine fault display: 1. Promptly check the engine condition; 2. Inspect sensors, air flow sensors, and spark plugs; 3. Check for engine knocking; 4. Examine ignition coils for faults; 5. Severe engine carbon buildup.
I often research car issues. The engine malfunction light usually comes on due to sensor failures, such as the oxygen sensor monitoring exhaust oxygen levels - if it gets dirty or damaged, the light will activate. Exhaust system problems like a clogged catalytic converter can also trigger it, causing excessive emissions. Ignition system faults like worn spark plugs or coil issues, or fuel system problems such as clogged fuel injectors affecting combustion efficiency may be culprits. Sometimes ECU errors or low oil pressure are also causes. It's recommended to use an OBD-II diagnostic tool to read trouble codes and accurately pinpoint the issue. Ignoring it may worsen damage, such as engine overheating or skyrocketing fuel consumption. Prompt professional inspection can save significant repair costs.
