When did the Check Engine light come out?
The MIL appeared in the early 80s along with computerized engine controls. Even the earliest systems, such as General Motors’ CCC (Computer Command Control) system had self diagnosis functionality.
What causes the engine management light to come on?
The latter is sometimes also illuminated if the car detects a fault with the differential pressure sensor, which determines how effectively the DPF is performing. In simple terms, this is a device that measures the ability of gas to pass along the exhaust, which includes passing through the diesel particulate filter.
What does a MIL check engine light mean?
A MIL “Check Engine” light on a Volkswagen Bora indicating a fault in the Engine Management System. MIL on a running engine indicating malfunction in engine control system.
What should I do if my check engine light keeps coming on?
Unless your car starts smoking or stalls completely head over to an auto parts store and have them run a diagnostic to find the cause of the check engine light. Call ahead and make sure they can handle your make and model, since some cars have special computers.
Is the service engine light a Dirty Little Secret?
Money Saving Products I Use Search The Service Engine Light: Your Mechanic’s Dirty Little Secret Last updated: January 16, 2021 G.E. Miller214 Comments Troubleshoot the Check Engine Light]
Where does the Check Engine light come from?
The check engine light, service engine soon, or malfunction indicator lamp is part of your vehicle’s onboard diagnostics system. The system is run by your vehicle’s computer, which is known as the electronic control module (ECM). Nowadays, the electronic control module operates virtually every electronic or electrical system of your vehicle.
What does the light on the engine management light mean?
This measures the amount of unburnt oxygen passing through the exhaust of the car, which can indicate whether the engine is burning too much or too little fuel. If too little oxygen leaves the exhaust, the engine will be running ‘rich’ – taking too much fuel and not enough air into its cylinders.
What should I do if my service engine light is on?
Service Engine Light: Your Mechanic’s Dirty Little Secret Check engine light on? Here is how to use an OBD-II scanner for free to diagnose the service engine light & save money vs a mechanic fee. Menu Home About About Contact Categories Investing Banks CDs Dividends ETFs Finance Guru Commentary Index Funds Inflation Market Terminology Mutual Funds