My aim is to give an effective solutions to these with EGR valve problems, or wish to improve the running of there Diesel engines. Please ask if help is needed, I am always happy to help. All plates are designed and researched be me in house over many years. I do not buy or have ever brought from other seller (most sellers are just engineering firms that have brought from each other-along with the repeated mistakes), and have no idea about car engines, fault codes, and what can be causing them. I also now list PAIR delete kits for Honda's and other makes are in the pipeline. I have been a mechanic for many years in cars and motorcycles, and my number 4 son is also a trained mechanic of some years, and working for Porsche. I ship out on day of payment up to 6.00PM week days,11.00 AM Saturday. Next day guaranteed has to be paid before 3.00PM week days . Thanks for looking at my shop.