AudiA6Jonny

Hi all.

Newbie here, and sadly don't have an awful lot of car knowledge but will try my best to understand any responses.

Problem:
1, Three weeks ago my car died on me
2, Was towed to garage
3. Car totally shut down and locked up
4, Has spent 3 weeks in garage.

The injectors have all been refurbished
The DPF was blocked and wouldn't let the car start, after trying a couple of used ones and reading after market ones don't work for long and £1200 for a new one (this is after a bill of £1300 already) so I opted for a DPF removal/bypass and a remap (atleast until i can afford a new dpf).

So first time I got the car back:
It broke down within 10 mins - Belching black smoke out the back and limping at 20mph if that.

Conclusion: ERG valve / Sensor was broken
This was then replaced and off I went again.

3 days later (with little use)
for first 3 days the car did feel more responsive and seemed to have more power, not sure if that cause i had been driving a old VW around for last 3 weeks but then:
Same thing again "Broke down" - I managed to limp back to the garage.

Conclusion: ERG valve was not in tight enough and had snapped again.

Now I have the car back again.
I am getting quite a bit of black smoke but I suppose it is understandable as the DPF has been removed.

My main problem:
The kickdown seems to be very slow now its like I press the pedal and the engine thinks for a couple of seconds can I be bothered to go... the revs counter goes upto 2300rpm before it actually kicks down... making driving off from roundabouts a dull and slow process.
The other thing is when I start it up after letting it sit for a few hours it seems to struggle to get the power to pull away just sluggish..

When you are eventually out driving it is still responsive but there is a seriously negative improvement.

Does anyone have any suggestions? is there a setting? why would it have felt good before the second EGR valve was replaced? and why after remaps, dpf removals and 4 trips to the garage does the car feel worse than before it broke down??

All suggestions and comments welcome and thanks in advance, this has already cost me £1600 in garage fees and £200 in remap fees.

aaronaudi

i hope you took out the dpf completely and replace with straight exhaust pipe cuz engine will still be at ah strain exhaust not getting a clear out passage