hi guys i have a post on here regarding my 1.9 tdi, its says that the code reader picked up on this 0226 start of inj control control difference was what it came up with. back on his comp it means ....throttle position switch ( tp switch) or app sensor accelerator position sensor after speaking to one of my mates seams i can get a second hand fuel pump for my car, but im told it will need codeing to the car when its fitted. may i ask is this easy to do or dealer jobby. if i fit new pump and it is not the problem do i have to code the old pump again????