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Old 28-05-09, 08:33 PM   #11
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Quote:
Originally Posted by greenep
Hi Mickyboy,

I have the same loss of power/depollution error message occuring. Was it obvious that the fuel filter housing was cracked, could I tell by looking at it or is it worth changing it anyway before I put the car into the garage?

Cheers.
after a long process my mechanic and I seem to have found a solution to the depollution system faulty problem. Remove the particulate filter and soak it in TFR fluid overnight. Jetwash out and dry with airline. Replace fuel filter. Engine management light goe`s out
after 6 engine starts. Main dealers fob you off. If the housing is cracked
someone has cracked it
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Old 30-05-09, 01:00 AM   #12
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Default engine management light cheaper fix than stealers

Hi if any of you are having problems with your peugeot and dont want to pay main dealer prices for fix , or want to be able to repair your self , i have the latest main dealer software and can clear fault codes , add additive, perform regeneration etc, etc , i am based in derbyshire and can be contacted on 07970241735, have 15 years experience working at peugeot .
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Old 10-10-09, 03:34 PM   #13
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Angry Hamido

I got my 407 in 2006 and i have been facing some problems with it, the latest is the Depollution System Faulty thing, i took it to the dealer and they said that they changed the Plugs and most probably its because the plugs are not working fine, 2 days after i took the car back, the same message appeared and sometimes I have to keep on pressing on the fuel peddle without the car accelarating....Today i took the car back to the local dealer and they are still checking it...
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Old 10-10-09, 05:50 PM   #14
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What engine do you have? If it's petrol (hence changing plugs?) it's likely the EGR. Preety common on the 2 litre.

If it's a diseasel, changing the glowplugs sometimes help. The HDi's are low compression and don't use the plugs much but they're required during the regenerative cycle to raise the engine temperature and sometimes replacing the glow plugs does cure the problem, especially on the 1.6.
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Old 11-10-09, 08:48 AM   #15
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Quote:
Originally Posted by chopper1192
What engine do you have? If it's petrol (hence changing plugs?) it's likely the EGR. Preety common on the 2 litre.

If it's a diseasel, changing the glowplugs sometimes help. The HDi's are low compression and don't use the plugs much but they're required during the regenerative cycle to raise the engine temperature and sometimes replacing the glow plugs does cure the problem, especially on the 1.6.

its Petrol 2 litre...but can you please explain what is the EGR? I believe the dealer has no idea whats going on with the car, and i found many people on the net are facing the same issue...maybe i can explain it.
Thanks.
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Old 11-10-09, 09:59 AM   #16
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Exhaust gas recirculation unit. It takes a small amount of exhaust gases and feeds them back into the inlet so they're burned twice, thus reducing emissions. When they pack up they cause lumpy, rough and hesitant running. I've come across it a few times on the 2 litre. I'd say it's the prime candidate.
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Old 15-10-09, 12:15 PM   #17
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I have the warning on all the time. Has been produced by a fuel injector faulty (2.0 petrol). When repairing that I disabled the EGR by blanking and it has improved acceleration, fuel consumption slightly higher around town. The code is on even after clearing. Emissions OK for MOT. If it is a suspected EGR problem, you could try fitting a blanking plate to disable it, need to make it yourself. My experience is that on petrol it won't harm, but dunno what it'll do for diesel models.
I think this warning and the equivalent fault reading on diag. (0400??) aren't much help with diagnosis.
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Old 28-04-10, 12:46 AM   #18
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Default Depollution system faulty

The 'Depollution system faulty' (Diesel engines) is caused by the ECU detecting a greater than allowed difference in exhaust gas pressure either side of the depollution filter. The engine will go into 'Limp home' mode, i.e. little power over 2,000 rpm. It is most likely that the depollution filter is blocked.

The fix is to remove the filter and clean it, or, if you are really rich, replace it. The filter is in the rear of the catalytic converter casing - take care when removing, it's made of a ceramic. If the Particle Filter Additive is working then the filter should contain only grey ash and be easy to wash out with water.

There is a good chance that a couple of doses of Redex engine cleaner will do the trick if you're too lazy for the above, I was.
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Old 28-04-10, 11:00 AM   #19
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Sonic, when you removed the EGR did the management light go off when you cleared the stored codes? I know on the 406 it logged a code but didn't bring the light on, but I'm not sure how it'd go with. 407.
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Old 10-06-10, 04:31 PM   #20
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Default EGR blanking? And other faults!

Hi,

I have a 2.0L SE petrol 407 which has a lumpy running engine when cold, that's then fine once warmed up. Is blanking off the EGR the first thing I should try?

I also get random errors such as depollution system faulty (although passed MOT and has brand new lambda sensors!), rear stop light faulty (No that also is working fine!), Indicator control faulty (Again that works fine), Indicator bulb fault (Again fine). Speed control system faulty (cannot use cruise control or speed limiter). Automatic gearbox faulty error, but changes gear fine but jumpy. Once it's warm it's all fine, 3 to 6 engine starts later all faults disappear, cruise control works and gearbox changes smoothly!

Amongst a plethora of other faults and the fact that I need to replace the front ball joints every 12 months, I have to say this is the worst car I've every bought. The Peugeot garage down the road want to charge me 4000 to fix everything, the cars only worth 4800! I was hasty to exit when they started talking about trade in's for a new one with 1500 knocked off the price!

They can go ram it up themselves!

Last edited by DanRiches; 10-06-10 at 04:35 PM.
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