Hi guys,
Thought I should join to share my IS220d experience.
I had issues blanking my EGR few years ago as it would throw up all sorts of errors. tried cleaning but only eliminated issues temporarily.
I found a company willing to do a remap. He managed to delete DPF and EGR. I then blanked the EGR with a plate and got the DPF gutted by a professional welder (mechanic) within a week of map.
The car was at 120k mileage when mapped. it is now at 162k pulling strong on all gears. the economy, torque and response was an still is really noticeable. I manage 38>mpg on minor boost and 31-36mpg having fun with it. These figures vary dependent on weather and road conditions hence the large variations.
To summarise,
1. hydrocarbon engine flush. (I just did it for the sake of it)
2. remap (delete EGR and DPF from ECU)
3. Blank EGR (blanking plate from ebay)
4. DPF gutted then re-welded professionally (from my mechanic)
Hope this helps,
