Why Would My Check Engine Light Came On After An Oil Change

If you mean the light came on minutes hours days after the oil change you have a different issue.
Why would my check engine light came on after an oil change. If you are positive that you have used the fuel with the correct viscosity rating check the level. If the car is running fine and the light is not. A check engine light is normally associated with emissions problems such as tune ups and stuff like that. This has nothing to do with the oil change.
Change oil light may be another story. If it s above the fuel line send it below the line. Your mechanic has the necessary parts to run tests and get to the bottom of what s wrong. Usually if this is the case your oil light will also appear.
If you notice the light after an oil change something else is wrong. Step 1 turn the car s systems on but leave the engine off. The oxygen sensor needs to be replaced. If the light comes on after an oil change the wrong level of oil might be the culprit.
Resetting the light without changing the oil may cause you to miss an oil change which can damage your engine. Oil changes are essential maintenance for your car but it won t do anything that could trigger your check engine light to come on. Check engine light does not exactly mean it has anything to do with the oil if check engine light comes on you can probably find the code on most cars. Low oil pressure is often the result of wear and tear in your car s oil pump or improper oil change procedures resulting in overfilling or getting air in the pump.
I would first verify what oil the mechanic quick lube etc put in your vehicle and make sure it meets all the manufacturer s specs for your application. Low oil pressure is a common cause of a check engine light turning on and it can seriously interfere with your car s performance.