What Causes the Car Malfunction Light to Illuminate?

1 Answers
VanessaFitz
07/29/25 7:30pm
The following are the reasons why the car engine malfunction light may illuminate: 1. Dirty engine cylinders with carbon deposits: Over time, carbon deposits can accumulate inside the engine, altering its design parameters. These deposits are thermally unstable and can retain heat, leading to uncontrolled ignition and engine knocking, which triggers the malfunction light. 2. Poor combustion condition: This is a primary cause of the engine malfunction light. To ensure optimal engine performance and longevity, oxygen sensors are installed to monitor combustion. Poor combustion not only pollutes the environment but also leads to fuel wastage and excessive engine wear. 3. Poor fuel quality: Engines have specific fuel quality requirements, which have become increasingly stringent due to higher regulatory standards.
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