406 hdi 90 injector woes and now anti pollution fault

[vfr400rob]

Greetings folks,
first off, great looking forum. A testament to you all.

I have just bought a 406 hdi 90 rapier estate 2001 y plate off ebay. I test drove it when I went to pick it up and it all seemed ok. A bit more sluggish than my old 405 1.9td estate but I put that down to it being a heavier car. All went well drove it home a 100 miles no problems.

However (sigh), on getting home I realised the air re-circulator was on so I switched the heater (air-con with climate control) to suck in air from the outside. The cabin then started to smell of diesel. I had a look under the HDI shield on the engine and noticed the injectors were surrounded by a load of black coal looking carbon (bigger sigh). After a look on various forums including this one I concluded that the injectors were suffering "blow by".

I have removed them - took me all day. Then had them tested and cleaned - they are apparently ok. Cleaned up the holes as best as I could (still a few spots of carbon on the bottom of them) and refitted the injectors with new washers and tightened them down while engine was cold - I do not have a torque wrench so I just tightened them up.

Started the engine and a sprayed diesel all over the engine from a snapped fiel return pipe, I must have knoked it whilst trying to get the injectors out. I have replaced that part today.

So test drive tonight. All seemed ok untill engine got hot when smell returned. I took onto the motorway to warm it up properly thinking it may be the diesel I sprayed over the engine compartment. Under heavy acceleration the engine shut off and a yellow engine light came on the dash followed by an anti pollution warning on the trip computer display. Waited a minute and restarted and drove it home seemingly ok. Engine light on but no anti pollution warning.

Ok so my questions are:

Is it shagged?

Should I tighten the injector bolts down as hard as I can when the engine is hot? I am guessing it has all just expanded and the blow by has returned. I was frightened of doing this as I don't want to strip the threaded bar the bolts are on.

Does this car have a fap filter thingy as I am now thinking eeek more expensive problems.

Any other advice you folks think may be relavent would also be greatly recieved.

Regards
Rob

[krd656]

I have no clue about diesels as i have never owned a diesel car, i also have no clue as to why the car cut out like that under hard acceleration. over fueled maybe but thats a complete guess.

I have a petrol 406 and i have just had to renew the 4 injectors in it as i was getting bad missfires caused by one of my injetors being stuck on open so it was flooding 1 cylinder.....This triggered the anti pollution warning on the dash constantly along with an annoying beep and it also caused the engine management light to flash all the time too.
After i renewed the injectors, when i first started the car the anti pollution warning came on the display 1 time and would not come back until such time as i restarted the car. Also once the new injectors were in my engine management light was on constantly too and not flashing at me like it was when the fault was active.....This was due to the faults still being stored in the engine ECU. I simply had the car plugged in and the faults cleared. I now have no warning lights on, no warning on the display and no annoying beep along with a car thats running perfectly.

There is a list of people who have Peugeot Planet in this forum and they are scattered pretty much everywhere......I would have a look at the list and contact the nearest one to yourself and see if they will plug the car in for you and either tell you the fault codes it is reading which will guide you in the correct direction or if you have it fixed have the codes reset............I was lucky my friend borrowed his works diagnostic stuff and did it for me....wasnt peugeot planet but it worked.

If no one near you has peugeot planet a lot of the little independant garages will plug your car in for you at reasonable cost.

Sorry i cant do better than that but i dont know diesels at all really..........if you are still scratching your head over this get the car plugged in


From what i have seen of the engine management light it flashes if there is an active fault and stays on constantly when there has been a fault that has been sorted but the error code is still logged in the ecu. So if your engine management light is on constantly and not flashing it may just need a fault code cleared from it.............I would still want to know what caused the fault in the first place though even if it has never returned since.