I've recently purchased a EGR delete kit from Darkside Developments for my A3 TDI.
Got around to fitting it on Friday afternoon, All went well and had to do the usual cleaning with carb cleaner to remove the carbon build up which was very thick considering the car has only done 36k, would dread to think of the build up if it was on a 100k car.
Anyway went for a test drive and the throttle response felt quicker and less lag when pulling away and changing gear, which could also be down to cleaning the carbon of the remaining parts.
No lights flashed up on the dash board for 40 so miles until I parked up at a friends hours for a few hours then went to drive off. The engine ECU light was on (which I expected it would of came on at some point). No driving issues though and the car still felt and drove as before.
I took a blast down to London last night, sat at around 75-77 most of the way there which is about 2400rpm, got a little further in after slowing down for traffic lights etc and the 30-40mph limits the DPF warning flashed up.
This has never happened before and I've driven to the speed limits in London many times before for long periods of time. I've read and been told if you sit above 2000rpm for so many miles then the DPF should do a regeneration. I drove back at 80mph in 6th gear at 2500rpm for 40 miles and nothing changed. The light is still on.
Has anyone had this problem before?
Is it a coincidence the DPF has had a fault since I fitted the EGR delete?
Could the ECU light being on have caused the problem?
Or is it the extra carbon/soot that would normally be passed back around my inlet manifold into my engine to be re burnt has clogged it up?
Any help would be appreciated and any further information you need to answer or help then please ask.
Thanks all and happy fathers day