2.2 hdi anti pollution fault

Talk about the 406's electrical system, what wires do what, how to add extra functionality, etc.

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GingerMagic
3.0 24v
Posts: 3579
Joined: Fri Apr 06, 2012 9:02 pm
Location: Bournemouth

Re: 2.2 hdi anti pollution fault

Post by GingerMagic »

oldgit wrote:
I thought i read somewhere that if DPF was removed the vehicle would fail MOT??
It is stated that a car must have the emissions controls it left the factory with ( EGR, DPF etc ) but I have has my EGR removed for a few years, and the DPF 'canister' has been hollowed out and put back on. It has passed the MOT with no problems.
To the untrained eye everything is normal, and with a diesel, only a visual check is necessary.

This may change in the future, but an older car like ours isn't the focus of the newer regulations as the emissions gumph was mandatory in about 2008 ( I think )

There are a few members in your area, and also a few on 406coupeclub.org - these chaps have the same engine as ours in the coupe so there are many members there who have ' overcome ' the FAP issues. It may be worth signing up just to read through what the FAP is and what is involved in removing it.

You can, of course, keep the FAP in place and simply(!) refill the additive tank, do a regeneration to clear it, use a diagnostic to reset the counters and wait until it needs doing again... Its a good system on modern cars but on ours it was a bit of a knee-jerk reaction to emission laws and it can be problematic if you decide to keep it in place.

As for the fuse - only the speed sensor - pre-heat unit and diesel ECU seem relevant although I may be wrong.
2003 2.2hdi estate - mine
1998 Volvo 940 auto estate - also mine
2019 Citroen C3 something - the wife's
PP2000 user, can help with faults / diagnostics in the Bournemouth area.
phil1976
Newbie
Posts: 4
Joined: Sun May 18, 2014 6:59 am

Re: 2.2 hdi anti pollution fault

Post by phil1976 »

Hi all. Im back on after a while . I have found out that the faults regarding abs , airbags, anit theft etc were down to the fact that when it rained heavily the water was making its way into the footwell and into the electrical connections. Thanks to DOGGY for the advice regarding that! .

I still have my anti pollution fault going on and off and the car lagging in power and am going to get my sisters BF mechanic to have a look at the car on my return from holiday.
Lovely car to drive to France in just a tad annoying when I lose speed !!!. lol.
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