christo098

7 minutes ago, Stevey Y said:

Hi if the DPF is gutted its been remapped as well most likely, this is the source of the smoke and most probably the EGT sensors are well out of sync the whole system was designed around lowering gas temperature to eliminate Nox1 emissions so its a fine balance, I ran my car to three times your milage by addressing each problem as it cropped up and sticking to design as factory, its not a good system as standard but due to the complexity of the engine software tampering with said software long term is like throwing a time bomb into a dinner party, unfortunately you only have two choices revert what's been done and have the ECU taken back to standard program which won't be cheap, or sell the car as is, removal of the DPF core causes higher exhaust temps downstream and robs the turbo of the back pressure it requires to maintain boost pressure therefore promoting overrun, in short it causes the engine to become FUBAR.

Steve.

Ok thank you I will try get it back to standard

35 minutes ago, Stevey Y said:

Hi try any/all of previous suggestions but at that milage I would check the DPF loadings ash/soot as a blocked DPF could cause some of these problems does the car regenerate regularly.

Steve.

The cars dpf was gutted as I saw it had been welded and confirmed it by tapping it with a screwdriver and it made that hallow sound

21 minutes ago, cliffcoggin said:

You are not giving us much information Christo. Even the casual mention of knocking was slipped in as an after thought, even though it is significant. Steve asked if you were losing oil, and I ask the same.

I also ask if the car has been re-mapped, has a full service history, and what the mileage is. Without more detail we can not provide sensible advice.

Sorry, I’m not sure if it’s been remapped and has full service history and is currently on 91k miles and it’s not losing oil whatsoever it was a thing that happened overtime slowly worse. Was on the motorway went to switch lanes and then boom suddenly loss of power and glow plug light, I had then come to a stop and restarted the car and then ot drove normal again and then when I got to about 70 same thing limp mode and then over time it slowly got worse more smoke and started getting slower till about a month ago where it started to judder and not go past 2k revs and loads of smoke and won’t even go up the slightest bit of hill an so far I have changed the injectors map and maf sensor but the car starts fine no issues and sounds normal at idle it’s only when reved or driven it starts to happen

22 minutes ago, Stevey Y said:

Hi did you do an adaptation on the MAFF, you did not mention the knocking before as this could be a whole other level as a worn crank or big ends would cause piston shudder which unsettles the oil control rings thus it starts burning its own oil, are you losing oil, just a question you haven't had any emissions equipment deleted?. Only other thing it could be is the PCV valve could have gone try disconnecting it from the intake and see if it still does the smoking.

Steve

No luck still

36 minutes ago, cliffcoggin said:

If there were no codes, who or what said it was injectors?

Garage said it was injectors

1 minute ago, Stevey Y said:

Hi running way to rich, change the MAP and MAFF sensor as those two will cause over fuelling and smoke especially at idle, also check DPF soot and ash loadings, check air filter and housing for blockage, my bet is its MAP/MAFF related.

Steve.

I have changed the maf and map sensor and it’s still doing it knocking when reved to 1.5k revs even took it for a drive and still won’t go above 2 and when it gets near it, it starts to jerk

No codes whatsoever said it was injectors had them changed and it still smokes

do you still have this problem as my car is doing the same and no one knows the fault