Why is my check engine light flashing when I turn the key?
When the CEL is flashing when the key in and the engine is off, the emission test is running. The emission test is to check the emission control system to reduce the amount of pollution from the CEL. Emission test reads by an oxygen sensor. You should only worry about it if the engine is running.
What does a flashing engine warning light mean?
If the check engine light is flashing, then the matter is likely urgent; consider getting a tow to your trusted mechanic. A flashing code from your diagnostic system is a warning that there is some type of engine misfire. You may notice a loss of power.
Why does my Subaru check engine light come on?
by Alibaster Smith. The Subaru check engine light comes on when there is a problem with the Subaru’s emissions control system. The Subaru’s computer, called an ECU, generates fault codes that pertain to various sensors on the vehicle. If one of these sensors fails, it will trigger a fault code.
What does a flashing check engine light mean?
A flashing check engine light is your Subaru Outback’s way of saying “I have a serious problem, don’t ignore me”. Most of the time, that serious problem is a misfire. This flashing light should not be ignored. When your engine is misfiring, it is dumping raw fuel into the exhaust.
How does an error code work on a Subaru?
Then the Subaru’s computer which is usually called ECU will produce error codes that relate specifically to the particular sensor affected in the car. If anyone of these sensors fails, it will prompt a fault or an error code. The error code is then kept in the computer until a proper diagnostic scan is run on the ECU to diagnose the issue.
How do you reset the Check Engine light on a Subaru Outback?
Then try to slide the cable off the negative battery terminal. You now have to wait 4 to 5 minutes, before your then reconnect the cable and tighten the retaining nut. Finally, start the car engine and wait for the vehicle Subaru’s computer to reset the check engine light.