The FAP warning light comes on and you do not know what caused the problem. FAP mainly exists in cars Diesel, even though we find them more and more in gasoline cars. Before launching into repairs in this Toyota 4runner, it is wiser to know where the problem came from. How does a particle filter work? Why does the witness go off? What can be the most common concerns? In this text, we will go around the subject. 
What is a FAP used for on your Toyota 4runner
As its name suggests, its role is to filter out microscopic particles harmful of the motor. The particles are so small that they can easily enter our body. It is also Peugeot who invented the particulate filter. Your catalyst is used to reduce the level of particles generated by the vehicle, then the particle filter collects the remains. It is therefore fundamental to have an operational particle filter if you do not want this Toyota 4runner to contaminate the air you inhale.
Why the FAP indicator light on your Toyota 4runner
The FAP of your Toyota 4runner is clogged
This remains the most common problem. No worries, your particle filter becomes clogged over time. The particles collect and hinder the proper circulation of your exhaust gases. A priori, the particle filter of this Toyota 4runner will be able to clean itself and therefore expel this waste. However, if it is too damaged, it must be replaced by a new one.
An electronic problem
The problem with these LEDs is that you are by no means certain of having a problem. Undeniably, it sometimes happens that an indicator light shines while this Toyota 4runner turns without problem. This particle filter has several electronic sensors which issue a warning on the dashboard. If the probes do not work well while this particle filter is doing well, it is likely that your indicator lights up.
What to do if the FAP light on your Toyota 4runner lights up?
At first, it is completely prohibited to remove the particulate filter from your Toyota 4runner! This is an offense. You should check the probes to see if they are working properly. If these work well, the problem stems from the Particle Filter. If it was dirty, you can clean it by rolling in the towers for 10 minutes. Without abusing it, it could damage the car. We advise you to go up to 3000 revolutions minutes. The heat of the vehicle will therefore carbonize these stored dirt, and thus clean the particle filter. If this procedure still does not work, it is necessary to have it changed.
Conclusion:
Your fap in bad condition will pollute as well as reduce the power of the vehicle. It therefore remains essential to make it change. Leave us a comment if our text served you. Good road !