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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,
I have been talking to Gareth at Avon Tuning in Bristol after reading this article: http://avontuning.co.uk/2015/11/lexus-is-220d-dpf-removal-ecu-remap/ Avon Tuning have a good reputation as far as I can see on various owners forums. They have a blog and facebook page too if you are interested. Gareth wrote in response to my email: "Since summer last year, the Denso ECU's fitted to Lexus/Toyota vehicles were cracked. This was one of the biggest revelations in our industry. We have now done over 100 Toyota/Lexus vehicles for both Remapping and DPF Removal. We give you a lifetime warranty with our software so no issues there for you. There are many advantages to DPF Removal, the main being the cost Vs replacement let alone a healthier vehicle with less restriction and pressure. Another advantage to a DPF Removal is that we include free of charge a Remap so therefore is very cost effective for you saying you £250. We offer a DPF Removal + EGR Delete + Stage 1 ECU Remap + Dyno package on your vehicle for £549 including VAT. That includes the physical removal of the filter, the fitment of an EGR blanking plate and all the associated ECU Reprogramming to prevent future DPF regeneration and warning lights. Also included free of charge is a Stage 1 ECU Remap to improve the performance and efficiency of the engine. Furthermore, once we have completed our removal service we offer a lifetime guarantee against any future DPF / EGR issues and warning lights." very interesting :)