You’ve been driving for over half an hour when all of a sudden the engine light on your dashboard starts to panic. We will determine all the options and analyze them to help you. First of all, you should know that in most cases, there must be a main problem on your Subaru Outback, so be very cautious.
First, you need to figure out what problem you are facing and especially how severe it is. This can be established by the behaviour of the Subaru Outback’s indicator light, as outlined by the different categories listed below. Therefore, refer to the right situation in order to react accordingly.
What to do if the engine light is on when using my Subaru Outback
Among these options, here are the ones for which you must:
Drive at once to the garage in your Subaru Outback :
– The engine light turns on and off, or flashes: the motives can be multiple, but you will need to check with a mecanic .
– The light comes on and stays on: this is obviously due to the pollution control system which has faults, so go to a nearby garage.
Stop your Subaru Outback as soon as you can and call a mecanic for a tow to the garage, do not take the risk of driving with it:
– The engine light stays on and the car has performance problems: If a serious problem is detected by the on-board computer, the safety mode is started. This allows you to drive in degraded mode (loss of available power), which reduces the risk for more serious problems (engine failure). In this situation, we strongly encourage you to use a garage for your Subaru Outback.
– The light stays on AND flashes: This is the most dangerous situation. This means that the catalytic converter is too hot because it is damaged, which means that at any time it can ignite. Stop your car urgently.
Probable causes of the ignition of the engine warning light
The potential causes of failure of your Subaru Outback’s engine management system are diverse, but categorized into 2 groups:
– material problem: injection system (vacuum hoses, flow meter, injection pump, turbo), emission control system (EGR valve, catalytic converter),…
– electronic problem: defective or disconnected sensor, lambda sensor to change, computer,…
All the causes that could require the ignition of the engine light on your Subaru Outback
There could then be a trouble with a dirty engine injector on your Subaru Outback. We consequently encourage that you clean it. It will operate as usual, but the air and/or fuel will have problems circulating.
A faulty injector on your Subaru Outback can potentially send too much fuel and cause over-pollution, which will trigger the catalyst to clog up (+ FAP (Particulate Filter) on diesel).
If the catalyst of your Subaru Outback is too dirty, (there is not anymore the right balance of chemical components to transform the exhaust gases) as a result the light will come on.
Ditto if the injection pump has a particular problem.
A HS lambda sensor will no longer be able to check the exhaust gases of your Subaru Outback and the ECU will therefore no longer be able to modulate the injection to lessen emissions.
If your Subaru Outback has a petrol engine, an ignition issue (coils or spark plugs) can lead to elevated pollution and as a result to the ignition of the engine indicator light.
Also, an overheated catalyst (if you were driving more aggressively, or the existence of fuel in the exhaust system that heats up everything) may trigger the engine light on your Subaru Outback to flash.
A throttle position sensor (a housing that deals with the volume of air entering the engine) no longer allows the ECU to produce a balanced mixture between fuel and oxidizer (an oxidizer is a chemical substance that has the property of allowing a fuel to burn. An appropriate mixture of oxidizer and fuel can lead to combustion): The combustion is no longer correct and the engine is disturbed, which causes the engine indicator light on your Subaru Outback to light up.
A clogged FAP (Particulate Filter) will therefore also logically be a cause, but in most cases another indicator representing the filter also lights up in addition.
Poor quality or unsuitable fuel (this sometimes happens with the E10) can cause this light on your Subaru Outback to light up. It can then shut itself off once you have driven with some other fuel. This can happen due to an different pump change. If you are still making use of fuel at the same place, ask the person who runs the gas station.
A dirty engine may cause the light to turn on . Indeed, soot can make some parts of the engine less airtight (e.g. val)
To discover more tips on the Subaru Outback, take a look at the Subaru Outback category.