Smoking 2.0TDI after remap mystery

[jamietriner]

Hi everyone. 

In need of some advice or help off of others with a similar car. I owned a a4 avant b6 model, best car i owned, after a few cars i wanted to buy another. So i brought a audi a4 avant 2.0tdi 2007 with 45k on the clock which was immaculate. 

Problem, when i brought the car it wasn't smoking, i took it for a stage 1 remap as it just transformed the car for me. After a month the car started smoking when driving, low gears putting foot down and when you give it a boot. Black smoke really smokey, not normal at all. So i had the remap removed taken back to the stock map.

Took it down my local specialist, he said injection 3 wasn't performing right, so after 500.00 i drove it away and to my surprise still smoking. He said take it for a run with some injector cleaner in it. So i gave the car a good run to Bruges and did around 600 miles a full tank on motorways still smoking!!! Rang the guy and he said there was a injector recall years ago for these cars and we was talking about the cars dpf and wether that has anything to do with it (it may have been removed before i purchased the car?)

Anyway I've booked it into Audi main dealer to see if they can fix it. While on the phone i asked if my car came with a dpf and she said my car didn't have one and also that the recall on the injectors also wasn't on my car (2.0tdi 140)

So my question is does anyone know what could possibly cause the car to smoke like this? My mechanic seemed to not be interested in anything i had to say in the way of vacuum leaks ect. Also if anyone owns a 2.0tdi older than a 2007 do they experience black smoke at times, i know it has a cat but I've looked at other cars and no car is smoking like mine so its not normal.

 

Any help would be great, my car is booked in on the 27th and if i could take a look at some obvious things myself i would, rather than having to shell out a lot more cash just after christmas! 

 

Cheers 

 

Jamie 

[WPAWS]

this is interesting may be of help

http://www.autoguide.com/auto-news/2015/04/what-does-the-smoke-from-my-exhaust-mean-.html

 

What does BLACK smoke from my exhaust mean?

Black exhaust smoke means the engine is burning too much fuel. The first think you should check is your air-filter and other intake components like sensors, fuel injectors and the fuel-pressure regulator. Other reasons could be a clogged fuel return line. Black smoke is usually the easiest issue to diagnose and fix, but burning unnecessary fuel will definitely affect your fuel economy, so don’t think of avoiding this one to save money, it won’t work.

Any smoke coming from your car’s exhaust pipe is a sign that your car is in distress. Pay attention to what it needs to ensure more miles for your vehicle.

[Magnet]

Hello Jamie,

Diesels are not really in my range of experience, but I would  go along with the article Paul has found.

I guess we can take it you had the air filter renewed with a good quality one before the remap. Not to have done, is a bit like wearing a new flash suit and not changing your underpants! 

Can we ask if the your local specialist was a diesel specialist or an Audi specialist - hopefully a diesel one. I too would have had a stab at this being an injector issue, and it all depends on what was checked and what was done. The basic check for injectors is a leak-back test, and if one proves to be at fault then it can usually be cleaned, repaired and recalibrated. In your case it depends exactly what was done to this/these  faulty injector/s.

If it were mine, I would be seeking out a local trusted diesel specialist ( if the one you have been to isn't one - and if he is, is there another one about?).

Kind regards, Gareth.