What causes the car engine warning light to come on and the throttle to lose power?
1 Answers
The following are the reasons why the engine warning light comes on and the throttle loses power: 1. Poor quality gasoline. Substandard gasoline leads to incomplete combustion of the air-fuel mixture during engine operation, causing the engine warning light to illuminate. 2. Oxygen sensor failure. A damaged or loose oxygen sensor or its connector results in an overly lean or rich air-fuel mixture, triggering the warning light. 3. Airflow sensor malfunction. A faulty airflow sensor or wiring prevents the ECU from receiving accurate intake air signals, leading to improper fuel control and affecting normal engine operation. 4. Spark plug carbon buildup. Carbon deposits on spark plugs cause poor engine performance, resulting in difficulties starting, unstable idling, poor acceleration, backfiring during sudden acceleration, excessive exhaust emissions, and increased fuel consumption. 5. Engine misfire. An engine misfire leads to high fuel consumption, poor acceleration, and engine stalling.