Peugeot 406 (1999 - 2004) - 2001 2.0Hdi 90bhp - anti pollution fault  
2001 2.0Hdi 90bhp - anti pollution fault - skylab
We have not long owned this vehicle and everything was going great, but silly us we had a small minor accident and damaged near side wing, headlight and corner of bumper. This has now been repaired, but since this we have an anti pollution falt indication on centre panel with what apears to be an emblem to the left and diagnostic emblem on main dash. when I start the car everything is a OK then I get a bleep, the read out goes off, but both emblems on centre and main dash stay on. Has anyone out there got any ideas. we have been reading this up on this site so we are including our RH number which seems to be neaded. The number is RHYF. Thanks for any help in anticipation
Skylab

Edited by Pugugly on 24/08/2008 at 16:10

Tags: technical issues insurance accidents legal and consumer advice

2001 1997 anti pollution fault - Armitage Shanks {p}
Petrol or diesel?
2001 1997 anti pollution fault - skylab
diesel
2001 1997 anti pollution fault - Screwloose

That's a 90hp HDi. You'll need the codes read to see exactly what's flagging that catch-all AP warning.

There's a cooling control module in the front of the N/S wing - or a connector fault maybe?
2001 1997 anti pollution fault - Pugugly
engine details now edited into the original post's subject line.

Edited by Pugugly on 24/08/2008 at 16:10

2001 1997 anti pollution fault - skylab
I cannot find a module all I can find on the nearside is a black plastic box held on a slide clip behind the battery tray containing 3 relays and 3 fuses is it anything to do with this. Behind this tray there is a round screw together socket fitted to the same bracket

Edited by skylab on 24/08/2008 at 16:39

2001 1997 anti pollution fault - Screwloose

It's inside the front wing; you have to remove the arch liner to access it - only a suggestion anyway - go with a code read.
2001 1997 anti pollution fault - skylab
sorry about the delay it has taken time to get codes read, which has now been done. 2 faults, on reset one has gone, the 2nd one P1138 fuel pressure regulation selenoid keeps on comming up and engine runs on 1 or 2 seconds after switch off. ANSWERS PLEASE???
Further and i believe it was skrewloose answering another problem for someone same as this, you mentioned quality of fuel being to dry could you please explain further THANKS

Edited by skylab on 28/08/2008 at 11:28

2001 1997 anti pollution fault - Screwloose

P1138 is one of the terrible twins on an HDi; it - and it's mate P1112 - really don't help an lot. [What was the other code?]

In full, the code definition is:- "Fuel pressure: stop requested, but regulator still active."

A sticking regulator is one of the possible causes; these don't like supermarket fuel, it's too dry for some and can cause the reg to stick.

Whip it out; check it's tip for swarf and it's o-rings for cracks.
2001 1997 anti pollution fault - skylab
Thats great but where do i find this regulator. as far as the other code is concerned he did not say because it had cleared
2001 1997 anti pollution fault - Screwloose

The regulator is the round black bit in the middle of the engine fuel pump.

Mind it's tip.
2001 1997 anti pollution fault - skylab
there appears to be 2 hex headed bolts holding this in place, do i have to undo these to remove the regulator
2001 1997 anti pollution fault - Screwloose

Yes.
2001 1997 anti pollution fault - skylab
sorry its taken so long to get back to you, but pulling hair out. I have taken the car to the local diesel specialist who agreed with you and have replaced the reg with another albeit a refurbished one. Picked the car up apparently all OK drove home approx 8mile without any problem parked up and engine kept running for 1 or 2 seconds after turn off. started car in the morning and behold anti pollution fault & engine management light on. Returned car to same company & again they replaced the reg with another one. Same trip home again no problem & exactly the same thing happened when parked up.Any suggestions or answers gratefully recieved.
2001 1997 anti pollution fault - Screwloose

What was the other code when originally read and what codes come back now?

How stable is the fuel pressure reading?
2001 1997 anti pollution fault - skylab
I think the original was P1138 and the other one I cant remember the code but it was something to do with nearside ABS censor which was removed and cleaned and is now OK. Car going back again today and I will find out what the code is. It still comes up with anti pollution, has no revs and runs on when engine is switched off. I will try and find out about the fuel pressure reading.

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