You are driving on the highway when suddenly the check engine light comes on. Out of panic, you contact your mechanic who is miles away to enquire why your check engine light is permanently on. An inbuilt self-diagnosis mechanism that utilizes a check engine light to relay information to the driver when one or more sensors on the vehicle's engine are not functioning well. As much as bad fuel may trigger the check engine through the lambda sensors, there's something else that mostly triggers the check engine light after refueling which makes people unknowingly blame it on bad fuel. HOW TO CLEAR THE CODES WITHOUT THE SCAN TOOL/DIAGNOSISA scan tool is always the best way to read the vehicle’s faults and erase the memory from the vehicle's computer but in some situations, you may not have a scan tool especially when you have travelled away from urban areas.

Source: The Star May 06, 2021 01:52 UTC