My car says 'anti pollution fault' when I start it

A sensor dirty or faulty most likely, usually is with C2's, lambda sensor.

engine ecu has fault codes to be read

several parts and sensors cover anti polution problems

Disconnect batt a min....see if it clears. May need it hookd to a scanner to tell issue. Emmisions can effect motor and computr

leaking exhaust should not cause lite to come on unless it is before the catalytic converter. the pollution fault could a small thing such as a lose gas cap, or hose of off the canister under the car.

It's not unusual for 207s to show the anti-pollution warning randomly. In my experience it isn't significant and you just learn to live with it, but as yours is consistently showing at start up accompanied with the engine management light, it maybe something more serious. If the car appears to be driving okay, then I would be inclined to ignore it, if not, you will have to have a Puegeot dealer put it on their computer diagnostic machine - pricey !

207s have a bad reputation for random fault indications as a whole (Google it), some of which seem to be ambient temperature related - my father's 207 randomly shows the air bag light on very hot days but this goes away after a few start/stop cycles and a drop in temperatures. Fortunately, his MOT is due in March so when it goes for an MOT the light is always off - air bag fault indication showing is now an MOT failure.
Some people wouldn't be happy driving with an air bag indication, or any other fault indication, showing even for a short period of time, so this is a personal decision as to what you do about it.

There is no such thing as an anti pollution filter. All modern cars have complicated pollution control devices on them, and unless you know what you are doing and have the specialised test equipment, there is little that you can do yourself. If there is a light on the dash, then you are going to have to take it to a Peugeot mechanic. They will be able to do a diagnostic test using a laptop and hopefully this will narrow the fault down. They will then be able to give you a cost estimate to repair it. It is unlikely you will be able to fix this yourself.

anti pollution fault with fault codes poo87 poo93 i changed fuel filter, so far all ok.

my 2008 308 shows anti pollution fault,what do i do now.? any help please

If the Anti pollution warning light is coming on the possible causes are endless. If the car is driving ok then that is a good sign, but please remember that modern management systems can mask problems quite well. The safest advice is to get it looked at and see what fault codes are appearing and then a diagnosis can begin, as leaving it is not going to be a good thing, it can go from a minor problem to more serious issues. At least the light is not flashing, which usually means an emission compliance problem and even more serious, but even so I would advise protecting your vehicle by getting it checked out as soon as possible to avoid potential damage.
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A fault in the ignition can cause an engine misfire and unburnt fuel gets into the exhaust causing the anti-pollution light to be triggered.

Check the ignition system for signs of damp or loose connections.------- I suggest get the car scanned at autozone service center.Its absolutely free to get car scanned.This will show the problem if you receive the error code.-------- Thanks.Helpmech.