The particle filter indicator light is on and you do not know what the problem is. The particle filter is mainly found on vehicles Diesel, although they can now be found on petrol vehicles. Before starting repairs on this Toyota Previa, it is essential to understand where the concern comes from. How does a particle filter work? Why does the witness go off? What can be the most regular concerns? In this text, we will go around the subject. 
What is a FAP used for on your Toyota Previa
As its designation suggests, it is used to purify microscopic particles toxiques of the engine block. The molecules are so tiny that they easily enter your body. For your information, it is Peugeot who created the particle filter. Your catalyst has the role of reducing the level of particles generated from the engine block, then the FAP picks up the rest. It is therefore essential to have a particle filter in good condition if you do not want this Toyota Previa to pollute the environment.
Why the FAP indicator light on your Toyota Previa
The FAP of your Toyota Previa is clogged
This is the most recurring problem. And this is normal, the FAP clogs up over time. The particles collect and prevent the circulation of your exhaust gases. A priori, the FAP in this Toyota Previa can purge itself and therefore eliminate the clumps. However, if it is too damaged, it must be replaced by a new one.
An electronic problem
The problem with these indicator lights is that you are never sure of the problem. Indeed, it sometimes happens that an indicator light comes on while this Toyota Previa works without problem. The FAP has several electronic sounders which transmit a signal to your dashboard. When the sensors do not work well while your FAP is working properly, it remains plausible that your indicator is on.
What to do if the FAP light on your Toyota Previa comes on?
First, it's completely forbidden to remove the fap on your Toyota Previa! Indeed, it is a crime. You will need to examine the probes to see if they work well. If these work perfectly, the problem comes from the Particulate filter. If the latter was dirty, it is possible to unclog it by driving on high speed for ten minutes. Without exaggerating, the process could damage the car. We advise you to go up to 3000 revolutions minutes. The vehicle temperature will therefore burn out the encrusted soot and clean your DPF. If such manipulation does not work, it will have to be changed.
Conclusion:
Your damaged particle filter will pollute but also cause loss of power. It is therefore essential to take care of it. Leave us a comment in case our post was useful. Enjoy the road!