The check engine light (service engine soon) comes on when a problem is detected by the self diagnosis system of your vehicle. Typically it indicates a problem detected with the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to a parts store or a shop that has an OBD2 scanner (most parts stores will read it for free). While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area. Once you have the code, Google it and find some explanations.
If the code indicates an O2 sensor, that does NOT always mean the O2 sensor is bad. It could indicate that your fuel mixture is too rich. Lack of air from a dirty filter causes a rich mixture because the computer doesn't know the filter is dirty. This in turn results in O2 sensor readings that turn on the check engine light.
If your air filter is very dirty, just replace it and reset the check engine light and see if it stays off.
Anything that could cause a cylinder misfire can cause the check engine light to flash. A restricted fuel filter is one.Anything that could cause a cylinder misfire can cause the check engine light to flash. A restricted fuel filter is one.
A clogged or defective fuel filter will very likely cause a check engine light. If it is suspected, it should be replaced.
No
Yes, especially in Volkswagen cars.
yes because there isn't enough oil isn't getting to the motor yes.a severely clogged filter can cause a lean condition triggering sensor codes activating the check engine light.
It could possibly
Auto Zone will check your engine codes for FREE. They will tell exactly what is causing your engine light to stay on. They may even reset it for you.
The first things to check are the air intake, the fuel pump/filter and the governor.
check your fuel filter has water in it more than likely or your water seperator filter ( if it has one ) the same thing.
Many things can cause a car to be sluggish like dirty air filter, check engine light came on, bad transmission, bad engine, etc.
Yes, an unplugged sensor can cause a check engine light.
Yes it can if it is clogged or has an obstruction it will most certainly prevent fuel from entering the engine. Check that you have fuel before the filter (incoming) and then check the output of fuel from the filter.