My advice would be to remove the DPF system and get a remap, but that's because that's what I do. Many others will give the same advice though.

Peugeot 206 1.6 HDI tuning options

As a word of advice it's really bad to keep driving with the DPF completely clogged, take a look on the HDI Tuning facebook page, I've got a little break down of a 206 1.6 with turbo failure caused by blocked DPF and faulty EGR.

 

If the antipollution has only flagged up since belt changed why would that point to DPF

antipollution comes on for ANY fueling related fault it may just be something not plugged back in correctly or timing a tooth out without more info you cannot say for sure.

If its NOT the DPF then remapping it would not help as the fault would still be there !!

 

Yes, this is true, I just read the part about you trying to regenerate the filter, and assumed you had a blocked DPF, my bad.

As said, anti pollution is a generic warning for every fault code, you do need to scan it and see what's going on, you can't really blame it on the work done during the timing belt change because it would have came on when you left the place, but sometimes you do get a few restarts before the warning light comes on depending on the severity of the fault.

 

I thought, wrongly as it is that anti pollution was about the dpf.

 

You would have thought..!!

It could be anything from a split pipe, something unplugged, or an old slightly blocked fuel filter :nono:

 

As do to many others it comes on to tell you there is a fault that potentially could cause pollution

DPF
airflow meter
map sensor
fuel cap sensor
low charge !
Wiring faults
vacuum faults
bad injector

All of the above and more can cause antipollution faults the ecu is reporting back to you that SOMETHING is wrong

 

http://www.peugeotforums.com/forums...forums/general-discussion-2/how-contact-member-peugeot-planet-diagnostic-28190/


http://www.peugeotforums.com/forums/introductions-28/brief-faq-guide-new-members-83170/#post529130

 

OK IM no Mechanic!!!!!!!!!
Took the car into the main dealers as they are the ones I bought it from, light was on and showing anit pollution, however they took it into the workshop after I had left, plugged it in andno freaking lighing light and the fault was not showing on the ECU, definitely ws on when I left the vehicle. So anyway they phoned for me to pick it up as theyc ouldnt diagnose, however they did state on paperwork the following.........................

Check for EML Anti Polltion Light,carried out investigation, the light is not on, checked for DTC???? none, carried out visual inspection and found turbo havs excessive play and throttle sensors clicking.

Any thoughts appreciated.

 

excessive play in Turbo bearings causes engine oil to get into the Manifold (Bad) and the bearings if they fail can cause a catastrophic failure

 

I am experiencing this exact problem and have been inspecting the progression of the problem (while I am waiting for the garage (seller) to get back to me with a time to fix the problem "if I am lucky!).

It all started with a failing egr valve, after a blank and remap I found that the injector seals had also perished, with these two factors in place and causing engine pressure problems oil has been building up from the breather to the Turbo intake pipe and then in to the turbo (a lot of oil not just a misting of oil) now with the turbo bearings almost totally shot even more oil is being put down the manifold! no smoke - no poke? not in this instance! this 207 1.6 hdi will not get anywhere over 2000 revs "not that I would want it to anyway at the moment", the moral is: as soon as you spot 1 fail you need to get is sorted as that 1 problem can cause many others very quickly, my turbo was replaced in this car 2 months ago by the dealer I purchased it from, he obviously did not notice the injector problem (leak) or read the ecu for te egr fault codes, now I am determined that he should be liable to repair or replace the turbo, it was not anything of my cause, he's told me that the car was fine and didn't do a health check as it was running great, in my owner ship it started failing on the 2nd week of ownership. I have paid for the seized brakes the car had (without me knowing), I have paid for the EGR blank and egr ecu delete, and all the filters including pollen, air, fuel.... that's without diagnostics charges! there is no way I can afford to sort out the turbo, and there is no way I should be held accountable either.

Just my story so far, but you get the point.

 

Sounds to me like the first turbo failed due to oil starvation due to the usual sludge build up these engines suffer from if the cause of failure is not rectified the replacement turbo will also fail.

Leaking injector seals would not contribute in any way to turbo failure
Leaking breather might eventually if the oil level is allowed to drop too much but the real cause is going to be sludged up oil galleries.

 

Hmmmm, Yeah I have seen many people pointing out the oil to turbo feed pipe located at the front of the turbo, you could be right, I know for sure that when the replacement turbo was put on these guys would not have checked why the original went, I am very doubtful the oil galleries were taken off and cleared (or even checked!), I know the oil levels are very good, but! when I first got the car home the oil level was way over the max level, in just under 2 months I have had to refill to the correct full level, I do not know any where other than from the breather down in to the turbo where that oil could have one? Its not seriously oil hungry, I check every other day, but all of a sudden a couple of weeks ago the oil levels went from full to almost zero in a day????
I topped up and the levels have stayed full, the oil is going down but very slowly...

I was thinking, maybe in the future, when and if this car gets fixed about installing a oil catch tank? has any one done this? I know the process, basically a pipe from the breather to the catch tank and then retuning I would say in to a new feed / return hole with a joining piece to the opposite side of the air pipe.

I will mention to the garage / seller that the galleries will need inspection, but first ask if they were cleared before he bolted on a new turbo the last time.

Thank you

 

I have seen before this oil catch can installed, users says it really traps oil avoiding oil deposits in pipes and other components.

I found this image as example, even is from a UK site, may be you can ask them.

Here in Mexico I've seen several turbo users using devices from Forge, check it out, may be they have something that fits for you.

erick